r/GMT800

Image 1 — Annnnnnnd Done!
Image 2 — Annnnnnnd Done!
▲ 9 r/GMT800

Annnnnnnd Done!

New headliner is reinstalled! Reupholstered the head liner board, as well as both sun visors.

Painted rear door latch shroud and various trim pieces such as the dome light shroud and mirror shroud in black bedliner so the tan wouldn’t look too off.

Never doing this again. A shop will get my money next time 😂

u/CometAuto-Detailing — 39 minutes ago
▲ 10 r/GMT800

Gmt800 5.3 has a bad noise when under load, but it’s under load only. When I rev it, it sounds perfectly fine. Around 4k rpms it starts to have a pinging, rocks in a glass jar noise

u/Just_Young1024 — 4 hours ago
▲ 18 r/GMT800

My 04 Silverado

A bit ago I posted my truck after her new paint job. we'll she is all put back together so thought I'd share. 04 rwd, just under 200k miles. Should be good for another 22+ years.

u/NumerousResident1130 — 10 hours ago
▲ 4 r/GMT800

How come one bushing can move and the other is non moveable?

I just received this part and I JUST NOW noticed one bushing is moveable and the other isn’t.

u/SmallTaserTaser — 6 hours ago
▲ 6 r/GMT800

Sunk cost fallacy

Hey friends,

I bought my 2003 Silverado Z71, I'm the second owner, probably 8 years ago for $4k. Currently 160k. Since then, I've put give or take 3k into keeping it on the road. The truck owes me nothing.

it currently needs a rear shackle, fuel lines, wheel bearing, and front shocks. Also the frame is rotted near the rear cross member.

I live in a state that doesn't require inspections. I can fix the wheel bearing and shocks. While I'm at it, should really do control arms and tie rods and whatnot in the front end.

My local mechanic says scrap. Frame rot and needs fuel lines/front shocks/ Passenger wheel bearing/ other miscellaneous stuff for way too much money.

I'm debating on just selling it as/is for maybe $3k and moving on to a frontier or higher mileage Tacoma.

if I fix the wheel bearing and it cures the God awful noise it's been making, maybe I'll just keep driving it. I know it needs a lot of work but not sure if I want to deal with it or just move on.

I haven't looked at the frame that much but I don't doubt it needs cross members and probably a patch.

I could throw maybe 4k at a down payment on a 8-10 year old truck and deal with payments for 3 years or "fix" this pile and drive it sparingly.

I do need a reliable unit for hauling my small bass boat around and I just don't know if it's worth monkeying with this or just getting another, smaller truck, even with high mileage.

Great truck for 8 years but New England rust might've done its damage.

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u/boltaxtion — 8 hours ago
▲ 4 r/GMT800+1 crossposts

Questions About Changing Transmission Fluid

I have a 2006 Silverado 5.3 Z71 4x4. Bought it in 2018 with 68k miles on it, currently has 109k. Not sure if the transmission fluid has ever been changed. Truck shifts fine, and when I check the fluid and wipe the dipstick on a paper towel, it's still red. Also doesn't have any kind of burnt smell to it. Plan to keep this truck long term, so since hitting 100k, looking to do some maintenance to it.

Not doing a full flush, just want to drop the pan, change fluid and filter, and I'd like to put a new pan (with a drain plug) on it to make doing this in the future much easier. Is my list of parts below good? Anything I'm missing or I should also be checking/replacing while I'm in there?

  • Valvoline Maxlife Full Synthetic Dexron VI ATF
  • ACDelco #24208576 deep pan filter kit
    • Gasket material is farpak, which is what I want, correct? Stay away from cork?
  • Dorman 265-811 pan
    • Anyone have experience with this? Apparently it's a good, direct replacement pan, but the drain plug leaks due to the crappy included washer. Replacing with a nylon washer fixes the problem.

Trans filter kit:

https://www.autozone.com/p/gm-genuine-parts-transmission-filter-kit-24208576/527709

The pan:

https://www.amazon.com/gp/product/B002U6ELS4/ref=ox_sc_act_title_2?smid=ATVPDKIKX0DER&psc=1

u/Wheely34 — 10 hours ago
▲ 2 r/GMT800

2003 Escalade EXT

Just got this for super cheap with the issues being no start and various other issues, my question is this…how would I be able to tell if a lowering kit was installed? Has the z55 autoride per the RPO code. Air shocks in the back are definitely blown when I jump the relay and shoot soapy water at the shocks, I want to restore it back to stock height and remove the air ride suspension with a the conversion kit made by TRQ.

u/Usbaldo93280 — 4 hours ago
▲ 10 r/GMT800

Am I cooked? brake issues

My break pedal got soft when I started it today, when I went and did a lap around the parking lot to test it the breaks weren’t working at all. I came to a stop using the parking break. When I got out I noticed all this fluid kinda looks like break fluid mixed with grease and whenever I push the pedal it seems to come out a lot quicker even though my tank isn’t fully empty . I’m not a mechanic so any help would be appreciated greatly!

u/Salt_Avocado_6762 — 13 hours ago
▲ 8 r/GMT800

Delema/question/ am I cooked?

Delema/question/ am I cooked?

As the title sayes

I’m going to keep this short and simple

I had a rear differential leak coming from the flange/ drive shaft

Took the drive shaft out put it the seal and put on the

Peion nut back ( didn’t torque it and don’t know the specs for it)

Drove it like 700 feet and heard a huge poping sound

Drove back immediately took off the back cover and this is what I see?

Here is the question

Do I need to replace the whole differential ?

Or can I get a way with it?

Also how do I tourq down the pinion nut?

Also it’s still leaking from there ?

Your answers and comments are greatly appreciated

u/Usual_Opportunity700 — 18 hours ago
▲ 1 r/GMT800

How would you go about fixing this

I got a 04 1500 crew cab found the frame is rotted pretty much from the cab back now this isn’t my first rodeo with frame repair on a gmt800 but never had one this bad by the leaf spring. I looked at doing a frame swap just to have a fully clean frame but can’t find any in my area worth buying so next route is just to man up and repair it, but I just wanna see what others have done to fix this

u/mattk4773 — 5 hours ago
▲ 9 r/GMT800

Can a leaking oil cooler line crimp on a 2001 2500hd 8.1 cause low oil pressure? It’s a slow leak but the oil pressure has dropped at idle this week

u/Sensitive_Pilot3689 — 22 hours ago
▲ 1 r/GMT800

4L80e 1-2 shift issue

I have a 04 gmc sierra 2500 4wd with a 4L80e. When I take off from a stop it shifts hard from 1-2 if I accelerate too quickly. After that everything shifts fine. Now if I start off with the tow button engaged there’s no harsh shift at all. To me it sounds like it maybe a pressure issue, but I’m no expert on transmissions. Fluid looks fine, it has not overheated, I don’t see any transmission codes on innova 7111 scanner. I’m going to do a fluid and filter change. While I have the pan off is there anything I should test or look at? Are there any common fail points or replacement parts to have issues? Transmission has about 90k miles on it. I would rather try a few hundred dollars in parts instead few thousand on a transmission. Appreciate any advice.

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u/Some_Consequence_861 — 7 hours ago
▲ 0 r/GMT800

What’s this noise?

Increases with speed, not rpm. Seems like it’s mostly coming from the front left wheel. But the closest sound I’ve heard to this seems to be a loose/bad driveshaft

u/CostZealousideal334 — 4 hours ago
Week