Mitsubishi Eclipse 3G / GMT400 Chevy front end swap imgur.com/FBzhol8
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πŸ‘€︎ u/Excelero
πŸ“…︎ Oct 18 2021
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GMT400 Upgrades and Performance Parts Buyers Guide buildpriceoption.com/gmt4…
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πŸ‘€︎ u/carguyfrank
πŸ“…︎ Jan 06 2022
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First GMT400! 1998 suburban, Vortec 350.
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πŸ‘€︎ u/HeinousAss
πŸ“…︎ Nov 21 2021
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GMT400. The official platform of 🎼LIKE A ROCK🎢, no wait, 🎼LIKE AN ROCK🎢 reddit.com/gallery/rd19w1
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πŸ‘€︎ u/rolfjeannoel
πŸ“…︎ Dec 10 2021
🚨︎ report
Y pipe interchangeability in gmt400s?

Will a suburban Y-pipe fit in a k1500. Both are 4x4 5.7 non vortec.

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πŸ‘€︎ u/NikoBenz
πŸ“…︎ Dec 04 2021
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Is your GMT400 a DD?

I am wondering how many use their trucks as daily drivers. I got a family truck a few months back and I really enjoy driving it. I also have a Jeep Cherokee that I want to get rid of to get some extra money.

It’s an β€˜88 with 86k miles. Should I sell and just drive this around? For longer trips, I usually take my wife’s sedan.

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πŸ‘€︎ u/biscardi34
πŸ“…︎ Oct 29 2021
🚨︎ report
New to the gmt400 platform

Hello everyone, I am new to the gmt400 platform but I just picked up a 1999 GMC k2500 and I was just wondering what are the common issues these trucks have.

Somebody suggested that I consider carb swapping it. Is this necessary?

My plans for the truck are to restore it, freshen up the engine, lift it 4-6 inches and put some 22x14 wheels on it.

Any input is greatly appreciated.

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πŸ‘€︎ u/Fjtfishing
πŸ“…︎ Nov 30 2021
🚨︎ report
Looking at picking up a v6 manual 1989 1500. I'm experienced with the GMT400 platform before, but are there any specific things to look out for on either the V6 or 5 speed?
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πŸ‘€︎ u/Call_Me_Kilo
πŸ“…︎ Jan 04 2022
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Another gmt400 at sema, this one a crazy low crew cab dually with like modern silverado mirrors for some reason reddit.com/gallery/qmpy47
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πŸ‘€︎ u/Call_Me_Kilo
πŸ“…︎ Nov 04 2021
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My 1996 Chevy K1500 (GMT400) Getting ready to swap in a new motor w turbo and new transmission into the ole girl she’s finally made it to 300k and still chugging instagram.com/p/CTkFCbFrt…
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πŸ“…︎ Sep 23 2021
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GMT400 Subreddit Statistics redditpagematrics.com/r/G…
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πŸ‘€︎ u/lochydjango
πŸ“…︎ Nov 12 2021
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Its time to play 'What's That Sound?' GMT400 version

Vehicle: 1995 Chevy C2500

Engine/Trans: 350 TBI, 4L80E

Sound: From up front it sounds like whispering 'shhhh'

My ideas as to what may be:

  1. Valve noise?
  2. Vacuum leak?
  3. The TBI fuel injectors spraying?
  4. Idler pulley?
  5. Power steering pump?
  6. A transmission issue?

Has anyone else experienced a sound like this before? Do you think it may be one of my guesses, or perhaps it may be something different all together? Oil was changed 1.5k miles ago. I'm hoping someone can give me some pointers on how to diagnose. Much appreciated!

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πŸ‘€︎ u/TheNightBoat
πŸ“…︎ Oct 18 2021
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My 94 c1500… what’s your favorite moment with your gmt400? reddit.com/gallery/osbizt
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πŸ‘€︎ u/noark99
πŸ“…︎ Jul 27 2021
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Putting LEDs "bulbs" in a circuit board from the 1980s is satisfying. My 1989 K1500 had some bulbs out in the cluster. After a bit of trial and error, I have the brightest cluster I have ever had in a GMT400. youtu.be/pUmmGJDg1xM
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πŸ‘€︎ u/PantherMq
πŸ“…︎ Aug 04 2021
🚨︎ report
Mitsubishi Eclipse 3G / GMT400 Chevy front end swap imgur.com/W9pZGop
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πŸ‘€︎ u/Excelero
πŸ“…︎ Oct 18 2021
🚨︎ report
Mitsubishi Eclipse 3G / GMT400 Chevy front end swap imgur.com/W9pZGop
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πŸ‘€︎ u/Excelero
πŸ“…︎ Oct 18 2021
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Key to longevity? I have a '99 Tahoe with 75k miles. Brand new engine and transmission. Any tips to keeping the gmt400 platform running for a long time?
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πŸ‘€︎ u/Devoted_Corrosion
πŸ“…︎ May 24 2021
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Check out this clean GMT400 spotted in the wild! v.redd.it/uy15vp1dk5k71
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πŸ‘€︎ u/newtekie1
πŸ“…︎ Aug 28 2021
🚨︎ report
GMT400 with the 6.5 turbo diesel running like new after some well deserved attention
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πŸ‘€︎ u/Cmonster45
πŸ“…︎ Oct 07 2021
🚨︎ report
12v Cummins, Dana 60 swapped gmt400 reddit.com/gallery/ndh37u
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πŸ‘€︎ u/Rad_199
πŸ“…︎ May 16 2021
🚨︎ report
Picked myself up another one, makes this my 4th GMT400 truck. This ones a 97 k3500, cclb srw with an automatic and the 6.5. 64k original miles on it, ex military truck that I got from a municipality down in Tennessee
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πŸ‘€︎ u/EpiclyEpicEthan1
πŸ“…︎ Mar 06 2021
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L(o)w Quality Meme (o)f my GMT400.
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πŸ‘€︎ u/jeepsaintchaos
πŸ“…︎ Jul 28 2021
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Don't shoot me for asking (GMT400 vs GMT800)

Ill try to make this short & simple. I find myself growing increasingly towards needing a little bit bigger tow pig than my 99 K1500 LT supplies. As a family of 6 with talks of a 5th child, a truck would be pointless. So, I find myself occasionally looking around at K2500 Suburbans. Id rather stick to a gasser, & in that regard....what is more capable in terms of generation? Should I stick to OBS or instead go for the GMT800? To give insight, here in NC the 400's are hard to find & have a tendency to be "overpriced" for their conditions. 800's are a little more common & fair priced. Despite price, I would prefer my choice be the more reliable one.....in yalls opinions what would you go with? (Don't shoot me for asking here please).

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πŸ‘€︎ u/ThaReaper892
πŸ“…︎ Aug 11 2021
🚨︎ report
A wild GMT400 appeared!
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πŸ‘€︎ u/Youngbabbs
πŸ“…︎ Aug 29 2021
🚨︎ report
1999(GMT400) GMC Yukon, should air be blowing over my heater core when my AC is on full cold?

Was diagnosing and fixing my lack of cold AC and I ran my air without the heater core air box cover on, and the rest of the covers on, and I could feel the air blowing through the heater core after going through the AC condenser first. Is this supposed to happen or should there be a door that closes off the heater core when the AC is set to cold?

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πŸ‘€︎ u/blackhawk905
πŸ“…︎ Jun 17 2021
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Anyone else shocked that after all these years, RCR hasn't gotten their hands on a GMT400 truck? They're ubiquitous in the midwest...
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πŸ‘€︎ u/tuck1395
πŸ“…︎ Sep 22 2020
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Picked up another one! 97 GMT400 cclb srw 4x4. Got big plans for her!
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πŸ‘€︎ u/EpiclyEpicEthan1
πŸ“…︎ Feb 25 2021
🚨︎ report
Legroom in gmt400 Suburban?

This may seem ridiculous to most people, but Im going to need more second row legroom. Im a tall guy, and my kids are big, too. Ive had a bunch of cars, but Im looking at GMT400 Suburbans. Ive found a couple of well taken care of trucks, but haven't pulled the trigger just yet.

For the size of these trucks they dont have much room in the second row. They certainly have room behind them to give up. Just curious if anyone has made/sold brackets to push the second row back?

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πŸ‘€︎ u/mtgmike
πŸ“…︎ Mar 26 2021
🚨︎ report
Tell me your old gmt400 build is from the 90s without saying your build is from the 90s. πŸ˜‚πŸ˜‚
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πŸ‘€︎ u/shouttag_russ
πŸ“…︎ Mar 15 2021
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πŸ‘€︎ u/fathaar
πŸ“…︎ Sep 26 2021
🚨︎ report
What does the average GMT400 look like (condition)? Should I buy 2 and swap interiors

I have not seen any $7-12K offerings in the last few months. I have looked at a couple 3-4K 4x4s, am I right in assuming this is the lowest tier of GMT400 and they don't all look like this (WHEN YOU GET UP CLOSE)? Bluntly these look like cars that an HOA would not allow to be visible from the street. All work/mud trucks. Do nice GMT400s not exist much anymore? The trucks I looked at looked ok in pictures online, just totally underwhelming in person. Would it be more viable to buy something like a 2WD suburban or wrecked truck with nice interior then swap the seats, buy new carpet, dash (LMC) into a beat 4x4? I really want either an extended cab truck or a suburban with a TBI.

*Yesterday I looked at a 4x4 94 suburban at a rip jip dealer that wanted 3,995 (originally 4,995!) for a "1 owner suburban with 180K miles". Pictures online looked great. It was roached. Every seat was ripped, engine bay was a mass of hoses repaired with tape, concrete stuck to fender wells, every light/accent cracked (did somebody shoot it with a BB gun?). The only positive thing to say is only 1 tiny dent, ran ok (shook a little at idle), no rust. Would I be crazy to think that that would be a 2.5-3K truck in a private sale?

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πŸ“…︎ Jul 03 2021
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99 K2500 4X4 454 Vortec crew cab GMT400
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πŸ“…︎ Aug 26 2021
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Gmt400 engine ground and chassis ground location?

Can someone please shed some light on what's where to locate the engine ground by mine is gone and I can't tell or see where the bolt is that hold the ground to the back of the block

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πŸ‘€︎ u/chichismoke
πŸ“…︎ Aug 06 2021
🚨︎ report
Passing along the K1500 (keeping my GMT400 Suburban) if any of you in Colorado are interested
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πŸ‘€︎ u/Maaakaaa
πŸ“…︎ Feb 04 2021
🚨︎ report
truck value- does anyone else notice the increase in value every year of the gmt400 models? mine went up since last year..
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πŸ‘€︎ u/Hoe2kz71
πŸ“…︎ May 01 2021
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Squat box, GMT400 reddit.com/gallery/ots00k
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πŸ‘€︎ u/New-Cherry-9305
πŸ“…︎ Jul 29 2021
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What were these body kits called? Where there a certain company that did these special ediciΓ³n GMT400s?
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πŸ‘€︎ u/theenthusiast5
πŸ“…︎ Jun 20 2021
🚨︎ report
NTD! This makes #13 of my lineage with GMT400 Trucks. 1999 C2500 5.7L

Picket up "Ruby" Friday. They say the time to buy your dream spec truck is when you find it. After over 3 years of searching, this one dropped in my lap just a couple miles up the road and I couldn't pass it up. I was literally 30 minutes away from missing out on this beauty as another buyer was in route. 163,000 unmolested miles. It's an LS Trim level but it's still not lacking much in the way of creature comforts. I won't bore any of you with all the details, but this dream spec beauty will serve the Ranch very well. And I'm in the Rust Belt here in Indiana!

https://preview.redd.it/z5y2hzotlsp61.jpg?width=4032&format=pjpg&auto=webp&s=31334579f92c857152ad05b4f8eb12ffc92a0656

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πŸ‘€︎ u/ZippoVarga
πŸ“…︎ Mar 28 2021
🚨︎ report
Can you date this Chevy GMT400?
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πŸ‘€︎ u/Nodeal_reddit
πŸ“…︎ Jun 11 2021
🚨︎ report
pre-refresh GMT400 seats

I got a 1988 K2500 Silverado that has seats from a '96 in it. Theyre the two individual seats with a center console between them. I hate them a lot. Would a 60/40 bench for the 88-91 years bolt right in? I know the console has to go, and I couldnt care less tbh. Any advice is appreciated. Thanks.

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πŸ‘€︎ u/DatScoot77
πŸ“…︎ Aug 12 2021
🚨︎ report
Thought I would share my C30 as well. She’s a 1983. I call her thunder thighs. 2nd pic is her beside my grandfathers WELL used 94 gmt400 that he bought in 94. reddit.com/gallery/kd1feo
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πŸ‘€︎ u/HougDeffernan
πŸ“…︎ Dec 14 2020
🚨︎ report
GMT400 Restore Pictures

Hi all,

I posted my pickup that I restored last year in here just recently. Some folks asked me for some more pictures of the story. Everything you see is what I taught myself as I could barely change oil before this lol

For the record I live in Pittsburgh, PA and I took a road trip the Spartanburg, SC for a frame/fenders/anything I needed

Appreciate any/all feedback.

Thanks!

Part1 https://imgur.com/gallery/sm1SRo3Part 1 Part2 https://imgur.com/gallery/RAawXg0Part 2 Part3 https://imgur.com/gallery/74C1wKYPart 3 Part4 https://imgur.com/gallery/lmZT9sMPart 4 Part5 https://imgur.com/gallery/XU8Leh1Part 5

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πŸ‘€︎ u/steelcity2-1
πŸ“…︎ Feb 09 2021
🚨︎ report
is gmt400/gmt800 the peak of chevy trucks/suvs

in my opinion both the gmt400 and gmt800 trucks and suvs are the peak of chevy truck/suv

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πŸ“…︎ Jun 21 2021
🚨︎ report
Anyone try S10 mirrors on their GMT400. The shafts look like they'd fit in the chrome mirror mounts imgur.com/28KgSGB
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πŸ‘€︎ u/slim_jahey
πŸ“…︎ Jul 29 2021
🚨︎ report
New to me Gmt400 reddit.com/gallery/k11uf0
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πŸ‘€︎ u/theholybull1
πŸ“…︎ Nov 25 2020
🚨︎ report
Update on my GovDeals GMT400: picked her up, and she runs!
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πŸ‘€︎ u/EpiclyEpicEthan1
πŸ“…︎ Mar 06 2021
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LS2/T56 '95 RCLB GMT400 v.redd.it/epc80f8gcqd61
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πŸ‘€︎ u/agentruley
πŸ“…︎ Jan 26 2021
🚨︎ report
GMT400 pick up truck won’t turn on v.redd.it/69gw7l3u7cb61
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πŸ‘€︎ u/GioM36
πŸ“…︎ Jan 14 2021
🚨︎ report

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