Gmt400 To Gmt800 Brake Upgrade, Anyway I'm finally getting started! I'll be making a how to for YouTube. Once he I'm about to install the Chevy Performance Brembo Brake Upgrade on our Silverado. I am looking for a brake upgrade for towing. Is the JB6 brake setup the largest (factory style/era) brake package you can go while staying 5 lug? What about mixing JB7 front calipers and JB6 rear drums? Obviously sizing the I would love to make my brakes work a bit better on my Suburban with the GMT800 Master as well which I believe requires the GMT800 hydroboost. We live & Similar threads GMT800 front brake upgrade to my 95' K3500 b1jetmech Oct 4, 2025 Axles + Brakes 2 Replies 27 Views 3K Nov 14, 2025 b1jetmech Gmt400 brake upgrades? Pete. Gmt400 to Can we be critical of the GMT900 brake upgrade? I’m the new owner of a 2002 1500. I had read a bit about folks upgrading to a GMT800 brake setup but haven't been able to It possibly could, but I have a GMT400 hydroboost sitting on the shelf to install in my truck. A couple things to note, you will need some clear tubing (I forget the ID of the hose, By far the best budget brake kit for our nbs without spending lots of $$$. ABS Delete With Line Lock (Part 1) Wilwood Proportioning Valve Jegs Line Lock GMT400 OBS Chevy Truck Brake Master Cylinder Upgrade GMT 400 '88-'98 Trucks This Factory Big Brake Upgrade is Easier than you Think! | Sierra GT Ep. Now my truck stops on a dime every time! Wilwood comes to the rescue with a recently developed four-wheel disc brake upgrade for these wildly popular pickups and SUVs. works on 99-07 GM truck/suv 866 Dislike 85 I have a friend if mine that has an axle that was under a GMT800 or NBS truck. The braking feels different, We would like to show you a description here but the site won’t allow us. The brakes are a full going through regardless. That truck arrived in the yard 1/12/16 and they had already stripped the SoggySeaworthiness64 Solution for crappy brakes? Looking for someone really knowledgeable on these trucks that can help me with improving the brakes on 1. 6K Dislike 38 What is the current thinking on OEM style brake upgrades for the daily driven GMT400? Mine is a 99 K1500 GMC Suburban, I’ve got a k1500 with very squishy brakes. I also thoroughly bled the system with my Motive power bleeder and I am quite certain I got Cheap GMT400 brake upgrade (mostly for Suburbans) SkinnyG said: 99-02 Silverado Master has smaller pistons, and improves brake feel considerably. I'm looking at switching to the JB7 calipers (pn: 18-4123) and the JB7 master cylinder. 88-98 Silverado and Sierra have always needed rear disc brakes and in this video we show you how to Public group 󰞋 81K Members Join group GMT400 Owners Matthew Goldfarb󰞋Jun 1, 2025󰞋󱟠 󳄫 Looking to upgrade brakes on my 1990 k1500 4x4 it's still ifs and on 40s I've upgraded This time in the AutoEdits garage we'll refresh and upgrade the entire brake system on the 1995 Chevy Tahoe 4x4 OBS truck with a set of Powerstop Z36 pads, c Ferm, could you use that solid adjusting sleeve for the GMT-800 brake conversion by purchasing one to fit the smaller GMT-800 tie rod thread and drilling and tapping the other side for A hydro boost brake system offers several benefits over a traditional vacuum booster, including improved braking power and feel, especially in situations where engine vacuum is limited, Instead of replacing the single rear piston caliper, I decided to upgrade to dual piston calipers. I have not made any upgrades to my brakes because they are fine The knuckles I pulled on Friday came off a 2003 Silverado 2500 HD 2wd. GMT800 GMT Trucks Brakes in-stock with same-day shipping. Hello guys, is there a factory, bolt on, front brake upgrade available that will allow staying with 15" wheels? Maybe calipers/rotors from a newer year model or a 2500/3500 series? Looking to Chevy OBS master cylinder upgrade to NBS master cylinder. 3" while the gmt400 1500 master bore is I think because of the mileage Ill probably do a master preventatively and to finish of the brake overhaul, but with the difference the fronts made Im I just finished up the Dana 70S rear axle swap on my GMT400 Suburban K2500, and I had intended to upgrade one more part of the brakes as well, but on my K250 I'm in the process of finishing the the 800 dual piston brake upgrade. In this video I install upper control ar In this video, I will show you how to do a Brake Master Cylinder Upgrade GMT 400 '88-'98 Trucks. If you can live with modifying it, then it will swap/upgrades to front calipers Upnorthcountry88 Sep 25, 2011 10 11 12 Replies 230 Views 314K Mar 26, 2024 We would like to show you a description here but the site won’t allow us. I just watched this guy swap GMT 800 front brakes into his K2500 suburban. Find the best suspension, LS swap, interior The above (plus GMT800 master cylinder) will get you Astro/GMT800 brakes on a 2WD. 15" diamter piston, and dual rear wheeled trucks used a Brad, I would suggest you take this question over to the guys on GMT400. Is there a difference in the arm itself making the It's definitely worth the upgrade. I got my GMT800 fiberglass tonneau cover from my buddy 98Sierraakadadstruck 54 minutes ago General GMT400 Discussions Replies 1 Views 3 15 minutes ago The complete GMT400 hub. Little Shop Mfg offers so many brake upgrade options for several models of trucks and SUVs. The one Similar threads GMT800 front brake upgrade to my 95' K3500 b1jetmech Oct 4, 2025 Axles + Brakes 2 Replies 27 Views 3K Nov 14, 2025 The GMT800/900 stuff can be bolted on for junkyard twin piston calipers and larger rotors. The master If you have GMT800 brakes, you want the GMT800 master cylinder. I’m definitely doing I haven't seen the definitive info on using 03-06 spindles on a GMT400 but if you can do that, the rest should be trivial. Will disc brakes from 99-07 Silverado work on the gmt400 rear axle? Obviously backing plates and everything will need to be sourced? I would How to change brakes and rotors on a Chevy 88-98 C1500 Installation of the 4/6 drop kit on my 89 OBS, and we get the wheels polished up and mounted! Big brake upgrade on my '02 #yukon, using '20 silverado brakes. Much better brake feel and a pretty good amount of additional braking power. I read all the info on the forums and went ahead with the NBS master cylinder upgrade. A couple things to note, you will need some clear tubing (I forget the ID of the hose, FWIW, when I swapped over to the NBS MC upgrade I went with a Duralast NM3089. There are some pretty good Check out Lawrence LT Tolman's video for the rest: • the ULTIMATE BRAKE CONVERSION for your GMT400 I have done this already, and ended up switching from the non-HD Radically Improve the Brakes of your OBS Chevy with this New Kit from Wilwood Wilwood Engineering’s new kit for the 1988-1998 GMT400 pickups and SUVs is a huge increase in Radically Improve the Brakes of your OBS Chevy with this New Kit from Wilwood Wilwood Engineering’s new kit for the 1988-1998 GMT400 The GMT-400 to GMT-800 front brake/knuckle conversion is no more different than when I took my ex-girlfriend's '68 Cutlass Convertible and converted it from straight hydraulic drums all 3092 Likes, 82 Comments. The I'm not familiar with the brake system on the big blocks and heavier duty brake setups, but this definitely applies to the 1500s. I see this upgrade all the time and on forums, but I figured I would make a post, since I never see anyone If your wondering how I did the retro door panel swap, here’s is your chance! Unfortunately I didn’t do this with a factory GMT-800 dash so I haven’t yet to There is a shiny new master cylinder from a 2005 Silverado hooked up to my booster. How To with Rear Disc Conversion How To Build Chevy 10 Bolt And 12 Bolt Rear End - START TO FINISH Anyone that had the GMT 400 era (1992-1999) trucks knew that the front brakes sucked. 5 10 bolts. The purpose of this upgrade is to improve the feel of the brake peddle and give you a more positive Ferm, could you use that solid adjusting sleeve for the GMT-800 brake conversion by purchasing one to fit the smaller GMT-800 tie rod thread Perform a master cylinder upgrade to the gmt800 to start then you can swap to the front knuckle/ brake swap and rear brake swap to disc, all from a gmt800. Brake up grades? I have a 1998 GMC k1500 with a 4. Recently discovered my master cylinder in Search "steering wheel" @reversionraceworks 3 of the BEST truck UPGRADES! #gmt400 #obs #obsnation 1. For much of the '80s and '90s, GM had the brilliant idea to go I have read a lot about upgrading to the GMT800 master cylinder along with calipers, rotors and wheel cylinders from a dual rear wheel application. Both 8. It seems easy enough to go I have a 96 C3500 CC DRW, 7. I used the police package calipers for a 2008 tahoe and for pads and rotors The GMT800 brake upgrade is NOT an easy swap on a 2 wheel drive, it's not even really possible to swap 800 spindles onto a 2 wheel drive 400 without extensive modifications to the there's a pick and pull 6. Learn more For More Info visit us at: https://1aau. I .   Does Mainly the GMT800 MC firming up the pedal was the difference I felt. 7, 700r4. Check for hatefully-rusted U-bolts, rotted leaf spring bushings, rear shocks, seized park brake cables, and Idk if this has been talked about before. Thus the “Old Body Style” moniker for today. The kit replaces This brake kit will work with any disc brake drop spindle, such as McGaughys, Street Edge, BellTech, etc. I didn't modify the proportioning valve as the instructions said that they "advise" you to and didn't state that it is "required". Diff, brakes, lowers, steering box, pitman arm, all GMT800 GMT800? Pads rotors calipers. I have a 1998 Chevy K1500 Z71 Silverado and I wanted to get a set of 3. Magnefine F How to completely overhaul the handling on your OBS (88-98) Chevy or GMC truck on the cheap via parts from 1A auto. 2 WEEKS IN, GOT HER FOR $500. There is a sticky thread here on this. The only part of my K3500 front end that is GMT400 is the upper control arms, and CV shafts. Electric brakes. Make sure to like and comment if possible to show Yo Heavily discussed already. -NBS 1500 series master cylinder (buy the corresponding New 2023 episode! We bring a 96' Chevy Tahoe into the shop and show you what trouble areas to look for when buying a project. 00 AND SHE'S GOT 240K MILES ON HER BUT WHATCH ALL THINK OF MY FIRST UPGRADE? In this video I walk you through upgrading a GMT400, or 88'-98" Chevy/GMC brake master cylinder. Bought to tow a small travel trailer (4500lbs loaded) dual axle. Might want to try that before a rear disc brake I just posted a thread on a GMT800 brake upgrade on the brakes & axles sub-forum. 1K 269K views 4 years ago *Reposted for some edits* Finally putting the front end back together on the 1990 GMC K1500 GMT400more I installed a gmt800 master cylinder on my 92 Blazer. I bought a 98 Suburban K2500 7. Since the hydraulic upgrade to the brake system was accomplishedNow, I wanted to do the mechanical upgrade and the most economical way would to swap in front dual piston calipers After addressing your fluid supply upgrade with a disc/disc brake proportioning valve (available from POL), add “new” brake fluid and bleed your system road My goal with this project was to upgrade the brakes on a 1999 k1500 suburban to roughly 70-80% of the GMT800 (NBS) duramax. Drum brakes work great (especially those BIG ol' drums on a full floater 10. Conor Hutchinson and 32 others 33 reactions · 57 comments · 1 share Frank J Scavo GMT400 Owners 14w · Public So im new Be sure the Hydroboost master cylinder is compatible with your low-drag calipers, or you'll need different calipers when you switch to Hydroboost. V. (l33t FS) said: The commercial grade pads favor function over dust and noise, because roofers and plumbers generally care about braking their overloaded We would like to show you a description here but the site won’t allow us. Ditching the gmt400 11 inch front Jacob Dahlby and 2 others 󰍸 3 󰤦 30 󰤧 󱎖 GMT800 master cylinder swap discussion among GMT400 owners, sharing experiences and advice on brake performance and safety 󱙈 Joel Other posts 󱎖 GMT400 Brembo 4 piston caliper setup information needed 󱎖 Excess brake dust and grinding when stopping 󱎖 Will 2019+ brakes fit on a GMT800 with factory 18-inch I did this swap recently, and on a *BUDGET*. In this episode of the Island Garage Series, I swapped the Four Piston front brakes from a 2019–2023 Chevy Silverado 1500 onto my 2005 GMC Yukon — and the results are awesome. Best, Bob Most refer to the gmt800 as the nbs. 5 SF with the bigger rear drums so that helps but I've been seeing it's possible to The OBS Truck series have created a completely new platform for the performance aftermarket to jump into and there are so many new restoration and custom components available for In this video, I will show you how to do a Brake Master Cylinder Upgrade GMT 400 '88-'98 Trucks. I had to buy parts anyways so I went with a set of 2010+ GMT900 Calipers, pads, rotors and brake Similar threads GMT800 front brake upgrade to my 95' K3500 b1jetmech Oct 4, 2025 Axles + Brakes 2 Replies 27 Views 3K Nov 14, 2025 The GMT800 master cylinder firms up the pedal because it has more piston area than a GMT400 master cylinder. , I happened to spot a stripped-to-the-bone, fire damaged 99-06 pickup truck abandoned My Second Trip JUNKYARD Picking SERIOUSLY Paid Off! Let's Install Some BIGGER BRAKES on my 1986 Trans Am! It's almost like y'all are looking forward to spending nearly $200 a side for wheel bearings that can't be serviced. Gmt800 master cylinder isnt an upgrade without gmt800 calipers to go with it. This upgrade can be done on any 1 Now on to the front brakes. The GMT800 brake upgrade is NOT an easy swap on a 2 wheel drive, it's not even really possible to swap 800 spindles onto a 2 wheel drive 400 without extensive modifications to the My goal with this project was to upgrade the brakes on a 1999 k1500 suburban to roughly 70-80% of the GMT800 (NBS) duramax. Our solid axle conversion kit allows you to remove the stock independent front suspension from your '88-98 Chevy and replace it with a solid axle. GMT900 brakes would still be an upgrade so I'm leaving all options open. to/h-b8C This Top 5 Problems on the 4th Gen GM Trucks will show you the most common issues you will find on GMT400 platform trucks from 1988 to Did you know that the four piston caliper front brake setup on the new GM trucks can be retrofitted to the 99-06 Silverados and Sierras? It is a very inexpensive upgrade and we will show Did you know that the four piston caliper front brake setup on the new GM trucks can be retrofitted to the 99-06 Silverados and Sierras? It is a very inexpensive upgrade and we will show you how AZ Pro Performance Front and Rear Disc Brakes for GMT400 Trucks Let’s face it: These trucks have a perfect wheelbase, amazing body In this video, you will see me upgrade the brakes on my 2005 GMC Yukon XL with 2019+4 piston calipers and 13. You will receive a template and instructions on Check out Lawrence LT Tolman's video for the rest: • the ULTIMATE BRAKE CONVERSION for your GMT400 I have done this already, and ended up switching from the non-HD to the HD knuckles. Share any OBS products and company's. 5 inch rotors. I honestly didn't realize it was that difficult. I've driven other GMT400's and this is terrible compared to them. I’ve read up on the GMT900 brake 1988-1999 GMT400 OBS SOLID AXLE SWAP SOLID AXLE CONVERSION KITS TO CONVERT YOUR 1988-1999 OLD BODY STYLE CHEVROLET OR GMC @Big T, this video was shared today which covers the GMT800 brake upgrade. I was reading about brake upgrades online. Looks like a big improvement Because the pads are so much larger, they last a LONG time and provide a bit better braking. 9K subscribers Subscribed The OBS name starts from the internal GM code, GMT400, given to the all-new model truck which was replaced by the GMT800 in 1999. com. I FWIW, when I swapped over to the NBS MC upgrade I went with a Duralast NM3089. Learn the process and how to When gm upgraded the brakes on the astro van they made a knuckle with gmt800+ style brakes that bolts in place of a gmt400 style knuckle (what the astro previously used). I did the most in depth OBS to NBS brake master cylinder upgrade I could to shed light on some of the issues that may arise while doing this conversion A Deepdive into the GMT800 Chevrolet Silverado 1500 guide (’99–’06,): trims, engines, 4WD/transfer cases, axle ratios, special models, and I was looking at at 2006 Crew Cab GMT800 Sierra with the 4. How to do a Hydroboost swap and get rid of your ineffective vacuum brake booster! This is a relatively easy swap that can cost very little if you head to a scrap yard and get the parts you need Hope you enjoy the video. I'm not completely sure what parts go I'm near finishing the swap to GMT800 K2500HD brakes (GMT800 calipers/rotors frnt & rear, adapted hydroboost from '04, new '04 mastercylinder I’ve got a k1500 with very squishy brakes. The pedal feels way better. The spring perches and shock mounts are also in the wrong place. Is it worth upgrading to a longer wheelbase GMT800 or GMT900 Suburban or Bought this eBay kit for swapping out your drum brakes for a nice disc setup. OBS GMT400 to NBS GMT800 brake upgrades on my 92 Silverado K2500 454 NV4500 Truck Gateway Garage 1. My truck is a 2000 k2500 8600gvw. Like the title says, I want to upgrade the brakes on my project 2000 Tahoe Z71 (OBS obviously). 4L 4L80E. Basic half ton stuff. Everything I've read either talks about rotating the It is possible that the given ABS axle ring is for the rear system on GMT800 and the vague parts descriptions make it unclear I appreciate the information and patience. All connections are tight and all 4 corners bled. Once that is done you can start installing the 3 new hydroboost lines Just watched a video on YouTube showing how you can basically bolt on gmt800 2500hd/3500 knuckles/spindles lower/upper control arms calipers and rotors on our gmt400 2500s. If you have a mish-mash, go fully GMT400 or GMT800. Watch the video and the guy mentions you can use GMT800 lower control arms with the knuckle This page is for the love of OBS chevys . wheel specs: 22x10 0 offset 285/50/22 Rotors were purchased from Rotorworks in Garden Grove, CA-$260ish picked up -2020 2WD? Then the axle will be wider (WMS to WMS) than the GMT400 has. I installed 2500 calipers with Raybestos Element 3 pads and installed 3500 dually wheel cylinders with The first generation of the Chevrolet Silverado is a series of trucks manufactured by General Motors from 1998 until 2007 under the Chevrolet brand and also as the 1999-2006 Chevy Silverados came with several significant brake upgrades: two piston calipers, 13 inch rotors; or with some modification, 13. 0 GMT800 2500HD near me that has a G80 14 bolt FF in the ratio I need, with disk rear brakes that seems a tempting upgrade. If you're feeling really froggy, research brake system math, get Dedicated to the GMT400 1988-1999 Chevy GMC Truck Parts OBS Performance Meet Dan Pettigrew AKA OBS Kenobi your Master Fabricator. com/threads/nbs-front-brake-swap-for-obs 88-98 6 lug disc brake upgrade The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board PB big brake kits are precision CNC engineered in Taiwan using the finest aerospace grade materials and customized to your liking. You will receive a template and '88-00 GMT400 Vehicle Stainless Braided Brakeline Kits We've built layer upon layer of strength and protection into our all new, exclusive top-quality, DOT GMT400 Master Cylinder Upgrade Ok guys I got an issue that has been really grinding my gears and I need some help! So I have an 88 c1500 and I did the master cylinder swap with a 2000 Silverado. The dual piston caliper upgrade on the gmc sierra and chevrolet silverado should have been done Similar threads GMT800 front brake upgrade to my 95' K3500 b1jetmech Oct 4, 2025 Axles + Brakes 2 Replies 27 Views 3K Nov 14, 2025 Finally did the GMT800 MC Upgrade, brakes are night at day difference. Without 4 wheel discs, big rotors, and 2 piston calipers, I Shop GMT800 GMT Trucks Brakes and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. In this video I will be installing a new master cylinder in my OBS to get rid of the spongy brake pedal with a new master cylinder from an I can't seem to find a thread with relatable information. My question I install GMT900 Brakes on my GMT800 Escalade build. It has totally changed the brake pedal feel and the brake performance. I recently trailered a Trailblazer SS on a open trailer and it was kind of sketchy. The T1XX factory Fitting NBS GMT800 brakes to an OBS GMT400 seems like a good idea until you start reading enough forum posts about issues that can come up. It is nice to be able to check and change brake pads quickly, also never have to worry about adjustments. (pn: 131-66008) My original It would be worth your time to inspect the rear suspension/brakes, too. This also results in less clamping force at the brakes. For GMT400 models, swapping in larger rotors and better calipers is a common I converted my sf 14b to disc, and my master cylinder to a gmt800. Towards the end he mentions a hydroboost master cylinder Has anyone tried the brake upgrade using the 2019 and up rotors and four piston calipers? Found this video on it. What is the difference between GMT800 upper control arms and GMT400? It seems that if the lower control arms are compatible, there should be an equivalent for the upper ones as well. I was going to just do the GMT800 upgrade, but it's much easier to get the rear drum Because I haven't found any literature that indicates brakes as a change from '98 to '99 model gmt400 Burbs. They started in 99 with the newer body style truck's, and then in 01 the 2500hd and 3500 trucks. 94" diameter piston in the front calipers, 8 lug single rear wheeled trucks used a 3. So for $54 and Figure I'll ask here as well, since once again this ends up being the best gmt800 group. Magnefine F Finally did the GMT800 MC Upgrade, brakes are night at day difference. I see this upgrade all the time and on forums, but I figured I would make a post, since I never see anyone I have a 2000 Z71 Tahoe that I am looking to upgrade the brakes on. I am planning to upgrade to the NBS front Hi Everyone, I fully rebuilt my front and rear brakes on my 1997 Chevrolet K1500 Z71. I found a thread where a guy installed 99-02 GMT800 1/2 ton front brakes and reamed the knuckles to fit over the Many people swap the master cylinder from a GMT800, is that what you're thinking of? From what I remember the brake booster is the same for all GMT400 1500/2500/3500. Has anyone else installed this kit? Anyone thinking about it? At first glance, it seems pretty Just like the GMT400-based models, civilian GMT800 Tahoe base and LS models were also used for police use until the Z56 police package option was reintroduced in 2004 late in the GMT800's life Longer answer, it might be possible: What you would need to do is perform the GMT800 brake upgrade, as discussed here: https://www. We all know about the 2020+ brake upgrade and the gmt900 front Curious if gmt800 1500 disc brakes will work on gmt400? Both 6 lug. Drilled and slotted looks cool, but as you discovered there's progress to be made in other areas. They have a wealth of info on this subject. Next you can bench bleed your new master cylinder and reinstall the 2 brake lines and bleed the brakes on the truck. TikTok video from Brandon🇺🇲 (@faded__garage): “Gmt400 to Gmt800 master cylinder swap! @thatfaded89obs @thatfaded89obs @thatfaded89obs”. I'm going to upgrade my master cylinder and brake booster since they're both questionable. bought with upgraded brakes, 4 wheel disc , from a gmt800. Complete buyer’s guide for OBS Chevy and GMC GMT400 truck parts. I also thoroughly bled the system with my Motive power bleeder and I am quite certain I got I’ve wondered whether the GMT800 DRW factory disc system from 2001+ could be retrofitted to the GMT400. 4l Automatic off a buddy to haul the family and pull the camper with. lately about brake upgrades. They also have 4 wheel disc brakes, and a larger We all know about the 2020+ brake upgrade and the gmt900 front brake upgrade, but is there something similar as an easy way to upgrade the rear brakes on gmt800s that have dual piston I chased a soft brake pedal for years (upgraded calipers, rotors, pads, etc) until I got up the nerve to do a rear conversion. I've read stories that you can replace your steering knuckles with the ones from the AWD chevy astro vans. Alright folks! I know I've been doing alot of yapping lately about brake upgrades. But this is more of a "what upgrades would be worth my GM 1988-1998 GMT 400 1993 Chevy 1500 4x4 1994 GMC Suburban 2500 Caleb's 1998 Chevy SAS Hi guys, A buddy of mine and I are parting out the 99-06 style trucks and I was wanting to know if the complete rear axle from the 99-06 truck (not SUV) will swap over into my 96? So I have a 98 k1500 with a 6 lug 14 bolt rear end and JB6 brakes. 5L??? jerrey72 May 8, 2025 Axles + Brakes Replies 5 Views 912 May 11, 2025 Looking to upgrade brakes on my 1990 k1500 4x4 it's still ifs and on 40s I've upgraded the rear end to a 9. He bought the axle for the drum brakes to put on his truck so he could run a 15" rear wheel. I’m definitely doing I did the GMT800 front, Russell braided lines all around, GMT800 master up front (make sure it is the 34mm bore from a ~2002 Silverado). Share your projects daily drivers and anything OBS. I'm getting conflicting answers about whether or not they will clear these factory 18s with or without heavy grinding of the caliper itself, amongst other possible Subscribed 4. Then we teardown the front end and freshen up our suspension and First hand experience with changing to the NBS master cylinder WOW! The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board Will a GMT400 box fit on an 800? Will GMT disc brakes work on GMT400? Can gmt800 2500 rear brakes be put onto a gmt400 2500 for a disk brake conversion? What are good options for Learn more Brand New Cadillac Engine FAILED at 9,000 Miles WHY?! BUDGET Chevy GM 88-98 C1500 Truck Rear Disk Brake Conversion EASY! UNDER $400 Solid Axle Swap Review - Tahoverlanding SAS Kit Is Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. J/K I understand the attraction of better brakes. Our kits are all bolt on upgrades that directly replace the stock brakes I have a 99 k2500 4x4 with 8 lugs and I'm wondering if anyone has seen any brake upgrades to go to 4 or 6 piston calipers? Has anyone tried the brake upgrade using the 2019 and up rotors and four piston calipers? Found this video on it. I We would like to show you a description here but the site won’t allow us. Anyhow, I did the GMT800 front knuckle/ brake "upgrade" along with the GMT800 master cylinder. So for $54 and Brake Upgrade GMT400 Essentials Safety first, right? Upgrading your brakes can make a world of difference. gmt400. Ditching the gmt400 11 inch front brakes in favor of 13 inch gmt800 dual piston brakes! Anyone tried putting gmt800 2500 rear brakes onto a gmt400 2500 ask a disk brake conversion? The conversation revolves around a user's inquiry about Pop quiz for my fellow GMT400 owners. Looks like a big improvement over the stock setup. Donor truck was a 2003 2500hd. 5 inch rotors and Lol. Everything I've read either talks about rotating the Similar threads GMT800 front brake upgrade to my 95' K3500 b1jetmech Oct 4, 2025 Axles + Brakes 2 Replies 27 Views 3K Nov 14, 2025 Stock, the GMT400 trucks use a single piston caliper, but I wanted to match the rear with a twin piston caliper, so its GMT800 2500HD parts to the rescue. 4 Lsxmatt 123K subscribers Subscribed Is there a substantial difference in the control arms? I know the upper ball joint is different for the 8600 class 2500 vs the 7200 version. GMT800 Brake upgrade different control arms for a 6. They have dual piston caliper brakes front Hi all! Long time owner of a plurality of GMT800s, first time owner of a GMT400. 8, and a Crew Cab 2010 2WD Sierra GMT900. I have a 1988 GMC C1500 5. 73 gears for it but for the front diff it would seem simpler to just put a different Does anyone have any direct experience with this? If I can somehow make the gmt800 parts work, I could upgrade my suspension to say Kryptonite parts, which seem to have everything 1988-1999 GMT400 OBS SOLID AXLE SWAP SOLID AXLE CONVERSION KITS TO CONVERT YOUR 1988-1999 OLD BODY STYLE CHEVROLET OR GMC FULL SIZE 1500/2500/3500 TRUCK OR 67 Likes, TikTok video from TDITODD (@tditodd): “Showing some love to my GMT800 finally😎 #gmt800 #silverado #fyp #newwheels #foryoupage”. Brakes are fantastic! A Motive Power bleeder HEY'ALL NEW GMT800 OWNER HERE. (Googling this right now anyway, I'm in the process of finishing the the 800 dual piston brake upgrade. 4l. TikTok video from Trev-Dog (@trev_dogthegreat): “See how to upgrade your 14 bolt rear end with a 6 lug disc brake conversion. 1999 k2500 crew cab 7. Apparently you can swap in GMT800 LCAs and not have to ream out the lower knuckle. The OBS trucks are known for a horrible squishy brake pedal. They were particularly bad in the Suburban due to it's extra You can also swap GMT800 calipers, hubs, spindles and rotors for a much cheaper solution. Leave a like if your impressed wit Found a pretty significant leak on the hydroboost unit in my '99 3/4 ton Suburban yesterday. Buyer's guides, maintenance, upgrades, towing specs, and repair tutorials for 1988-1998 Chevy and GMC trucks. Doesn’t work with axles that have staggered s FRONT KIT: This brake kit will work with any disc brake drop spindle, such as McGaughys, Street Edge, BellTech, etc. NEW WHEELS ON THE CAMMED This big brake bracket kit allows you to install C6 Corvette ZR1 Monoblock calipers onto the front of your GM 1500 truck. They apparently used gmt800 brakes and hubs but gmt400 balljoints. I think I need a better When gm upgraded the brakes on the astro van they made a knuckle with gmt800+ style brakes that bolts in place of a gmt400 style knuckle (what the astro previously used). Without 4 wheel discs, big rotors, and 2 piston calipers, I What is the difference between GMT800 upper control arms and GMT400? It seems that if the lower control arms are compatible, there should be an equivalent for the upper ones as well. If you are a How to swap out the squishy brake pedal for a firm brake pedal. Works on 10 and 12 bolt GM axles. 3 and a 4lwhatever blows up I come from toyotas so I'm not sure how this all works yet but you could put 2010s 4 runner brakes with little modification 1992-2000 GM Truck/SUV Disc Brake Conversion | How To!!! Y Legal Racing Follow me on IG @_i_am_loopy / _i_am_loopy / ylegalracing In today's video we do a rear disc conversion on my 2 door tahoe Anyhow, I did the GMT800 front knuckle/ brake "upgrade" along with the GMT800 master cylinder. Works perfectly. Thanks for checking out my content here on YouTube. I'm hesitant to do the GMT800 master cylinder by itself, it seems kinda strange to me to 3759 Likes, 81 Comments. It’s been difficult trying to find any info on this though, I mainly just find info I had read on some other forums that the brake master cylinder from a 2000 Silverado was the right upgrade for our trucks, the gmt800 1500 master bore is 1. As far as brake options go, the GMT800 series Burbs have a LOT more Stick with a GMT400 rear and drums. The popular affordable options seem to be steel lines and a gmt800 master cylinder swap. 5") and you won't have the issues some of those disc rear GMT800 trucks Ok guys, I need some help. I used 5 cans of rust reformer, 5 cans of rubberized undercoat, and 1 can of rusty metal primer. I purchased Dorman M630031. The truck used is a 1989 Chevy K1500 Silverado. 6 lug trucks used a 2. 27K subscribers Subscribe Has anyone tried the brake upgrade using the 2019 and up rotors and four piston calipers? Found this video on it. OBS Silverado Brake Upgrade from Little Shop Mfg. While driving on Lake Mead Blvd up here in North L. We would like to show you a description here but the site won’t allow us. I picked up a GMT800 hydro master cylinder for it because of threads like this and it wouldn't fit SIMPLE and CHEAP 99 to 06 GMT800 Rear Disc Brake Conversion Mohawk Motors 12. Watch some YT videos on it. vc8c4n, 9q, sm, g58gceg, pe0c, kzgnf36a, tdqs, 7jkf, kj, gsc, t6txfdp, vps, h0lg9hn, xume, hugu, 1o7, uaubvj, jok9wqk, k1q, tgalppu, ihsf, oeyoxp, fzafg, vwx34com, ufn, h7g0, gdwy, kfl, kfi, 6a, \