r/gmcsierra

I was thinking about riding out their warrenty and then getting it deleted I just don’t know much about the 3.0’s and if it would last a good amount of time without a bunch of headaches.

Anyone know anything about the hood scoops on the 2020+ Denali HD gassers? I’m up fitting one with emergency lights. Are the fake rubber louvres removable as a separate part or is it attached to the scoop itself? I’m looking at 3d printing a custom mount that completely replaces the louvres. Thanks

I got a 13 sierra 1500 with some mods i want to add a overcab camper it weights 1980 sticker on my truck is around 1500 im around 500lbs over with a full camper means gas food and everything so at max ill be 500 over is that over kill???
35s on 17s
Headers
Tranny cooler
Intake
Exhaust
Tuned

2023 3.0 AT4. I recently bought 20x10 Fuel Vandal Wheels, and after install I noticed the gap between the rim and brake caliper was concerningly close. There was maybe a .5-1mm gap, small enough that I could insert chipboard between them. Is that enough? I'd prefer to stay away from spacers if I can, and I would consider aftermarket calipers if the gap is too small.

Just picked up a 2026 Denali ultimate and have been hunting to find AEVs bumper and guard on an onyx black 2500, with a little Ai wizardry here it is. Hope it helps anyone else looking for the same thing.

Truck just started making this pinging noise the other day after work. Had to do an oil change in it either way so I took this video after I finished the oil. She is leaking a decent amount of oil but I've kept her topped off.

Any ideas? It's coming from the bottom towards the back of the engine. Thanks boys.

Anybody ever seen anything like this? I washed it the 2 days ago, parked it in my driveway on our first 30C/80F day of the summer and came out this morning to find this.

So . I’ve been looking for a daily truck USED. I come across this 2015 GMC Sierra with over 130k miles for 21k ( I can try negotiate price since it’s a dealer)

I ran the carfax and it shows it had an engine replace . I called the company on the carfax and they said it’s true. The engine came brand new in a crate and he installed.

Here the carfax. Do you guys think this is a good buy or would you walk? or what year truck would you get instead.

It’s a 5.3 v8

But it seems like he sold it right after engine replacement

The engine shop also mention he can reach out to previous owner to see if I can speak to him about the car, and how he knows the guy and he was having trouble affording the maintenance

What do y’all overall think?

Truck had 4 Owners

Thinking about picking up the Stinger/OPSIS 2K Front + Rear dash cam setup from the GMC accessories site.

​If you have it, how do you like it?

​

Just got a GMC Ultimate HD and wanted to buy the Platinum Protection Plan. Since I'm in CA, I am legally blocked from buying from out-of-state guys like Knapp.

​My local CA dealer is asking $8500. Does anyone know a high-volume California GM dealer or finance manager who sells the official plans near wholesale? (I've heard Abel GMC is good, but looking for any active leads).

​Appreciate any help!

Looking at this truck and was wondering what y’all think? Listing is 14,900 with 122k miles and is pretty clean all around. Thoughts?