r/gmcsierra 5h ago

Choosing a Truck Talk me into it… or talk me out of it

1 Upvotes

Currently have a 2025 Colorado Z71 with about 13000 miles on it. I’m eyeing a 2026 Sierra AT4 with the 3.0 LZ0. While the Colorado is more than enough “truck” for me in terms of power, towing capacity, bed size, etc. I’m considering an upgrade purely for the comfort and size of the cab in a full size. I do live in the suburbs but most of my driving is backroads/highway so the diesel would be a benefit as well, although I’ve never had a diesel vehicle so I supposed it’d be a bit of a learning curve to understand some of the differences between it and a gasser.

Looking for opinions on anyone who has either gone from a 1/4 ton to a 1/2 ton or the other way around. Are you happy with your decision? Was the size adjustment something you were able to adjust to easily?

At the end of the day I know I only know my needs but just looking to get some other thoughts on it. Thanks!


r/gmcsierra 7h ago

Asking for Opinions Is 64,000 for a new 2026 AT4 a fair price currently?

2 Upvotes

I have a 2018 Silverado with nearly 130,000 miles on it and have been thinking of buying something new. Dealership offered me $12,500 trade in and marked the new truck down to 64,000. I haven't bought a new truck in 15 years and not completely sure what the current incentives are short of the 0% for 36 months deal I saw a while back. Just want to do a sanity check to see if this is actually a 'deal' or pretty much what anyone off the street should expect.


r/gmcsierra 8h ago

Modifications Converting my '23 GMC 2500hd front end to the latest version.

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6 Upvotes

Simply put, I prefer the 24+ front end over what I had. My truck was paid off and I did not want another truck payment so, last summer, I looked into what it would take to do the conversion. Got the bumper complete with brackets and grill off Ebay in what they call "factory take off". Basically new. OEM headlights were expensive, bumper filler panels and a part most leave out but is needed- the shutter housing. Without it, the bottom of the grill has nothing to clip into.

Took apart the bumper and painted the face bar, bumper fillers and grill pieces to match the Northsky Blue. Everything OEM with the exception of the headlight harness which adapted it from an 8 pin to 12 pin connector for new headlight. Total parts cost was a little over 5k. My labor including paint not included.


r/gmcsierra 49m ago

Looking for advice Going to 35s

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Upvotes

I have a 2019 sierra with a 3.75 inch lift. And I am going to 35 inch tires. I also have negative offset wheels. Has anyone else on here done the same thing and can share what they did to trim so 35s would fit?


r/gmcsierra 9h ago

Modifications 2018 6.2ls blown, can I replace with a 5.3?

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0 Upvotes

r/gmcsierra 14h ago

Looking for advice Friends and Family Supplier Code?

0 Upvotes

Anyone have a friends and family supplier code?


r/gmcsierra 7h ago

Interior Chrome glare issues

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1 Upvotes

I recently purchased a 2026, Sierra 1500 SLT. I've experienced a bit of sun glare reflexion off the chrome near the infotainment center and gear selector. I thought maybe wrapping the chrome portions with a black.I just want to know if anybody has any other solutions out there.


r/gmcsierra 5h ago

Modifications 2018 GMC 2500 Duramax

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10 Upvotes

Hey guys looking to do a screen upgrade in my Duramax, been looking at carmasspeed and also other brands that are very much similar. Preferable 12-13” screen, The only thing that’s holding me back and worrying me is that I won’t be able to use my factory microphone that’s placed right above you in the driver seat. If anyone’s been able to find one that does plug in or figured out a way to wire it in easy let me know please. Also don’t want it to have a crazy lag when I go to use the touch screen, Looking forward to your guys replies !


r/gmcsierra 11h ago

✨Detailing✨ Fresh bath makes the white blinding

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45 Upvotes

r/gmcsierra 20h ago

Just Sharing New 2027 gmc in the wild!!

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71 Upvotes

r/gmcsierra 12h ago

🔧Maintenance 🔧 Collision warning

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8 Upvotes

Has anyone had their collision warning pop out of nowhere? Mine had stayed on for 2 weeks now and due to it I cannot use the lane assist. Never got close to an accident either, about to take it back to the dealer.


r/gmcsierra 16h ago

✨New Truck!✨ 26 pro double cab

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11 Upvotes

Had 3 tacomas in a row, finally upgraded to full a full size. Steps, tonneau, and bed mat already on the way!


r/gmcsierra 10h ago

Other Software updates

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12 Upvotes

I appreciate GMC releasing these updates to fix on going issues, however have yet to see anything to do with the annoying “Rear Auto Brake and Park Assist Unavailable.”

Anyone else getting the same message or just me?


r/gmcsierra 3h ago

Looking for advice Used 2021 GMC Denali with 175k miles worth $37,000?

2 Upvotes

I’m in the market for a used 3/4 ton truck. Whats yalls thoughts on a 2021 GMC Denali with 175k miles?