What did you do to your AT4 today?

[john151ama]

Installed the Morimoto backup light bar. HOLY SMOKES. What a huge difference in reverse lighting. Very pleased.

Not today, but I recently built this underseat storage box. I bought the brackets from a company that sells the complete kit, but I couldn't justify the price, so i built my own. One long pull-out drawer with a lock. Outside is automotive felt. I had to cut my brand new TuxMats on the sides, but the tradeoff is well worth it. Lined the inside with an old yoga mat to keep things quiet. Still leaves space behind it for other items.

Nice job! Any photos with the drawer open? Looks like a great addition

 

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Console Safe Gun Safe for GMC Sierra - Grab one through Amazon!

[noiseyears]

Nice job! Any photos with the drawer open? Looks like a great addition

Thanks. Here are some more photos. I basically just built the box, but used the installation instructions from the company i bought the bracket from. Bolts into the back side of the box with hardware that spins if you try to unbolt. However, if someone really wanted to steal it they could unbolt the brackets from the seatbelt mounts. It was suggested to use self-tapping screws through the bottom into the floor bed, but I chose not to add that additional level of security. My thought was it's a wooden box - if they wanted in, they could pry it open, so it's not worth putting holes in the floor. For me, it's a nice spot for everyday stuff, as well as long pew-pews - things I want in my cab and not in my Decked system. It drastically increases the usable storage space under the seat.

Also - there may be a question about why I chose a drawer vs. top hatch. I usually have my dog's gunner crate mounted on top of it, and I wanted access to the drawer without pulling out the crate. IF you decide to build this, just fyi, make sure you put a lock or some sort of drawer stop on it. You do not want this thing flinging open during a hard stop.

 

[noiseyears]

Also took advantage of the Console Vault sale recently and installed this. Happy with it so far, but only installed yesterday.

 

[noiseyears]

Removed the GMC and Sierra badges from the tailgate using one of those eraser wheels. I was never a fan of the silver and how busy it looked. After installing the new wheel/tire combination and so much black from the GFC, I'm contemplating what to do with the side door and tailgate AT4 badges. Remove entirely or replace with factory black. I'll leave them for now.

 

[john151ama]

Thanks. Here are some more photos. I basically just built the box, but used the installation instructions from the company i bought the bracket from. Bolts into the back side of the box with hardware that spins if you try to unbolt. However, if someone really wanted to steal it they could unbolt the brackets from the seatbelt mounts. It was suggested to use self-tapping screws through the bottom into the floor bed, but I chose not to add that additional level of security. My thought was it's a wooden box - if they wanted in, they could pry it open, so it's not worth putting holes in the floor. For me, it's a nice spot for everyday stuff, as well as long pew-pews - things I want in my cab and not in my Decked system. It drastically increases the usable storage space under the seat.

Also - there may be a question about why I chose a drawer vs. top hatch. I usually have my dog's gunner crate mounted on top of it, and I wanted access to the drawer without pulling out the crate. IF you decide to build this, just fyi, make sure you put a lock or some sort of drawer stop on it. You do not want this thing flinging open during a hard stop.

Very cool! Nice to be able to customize to meet your other use needs with the dog crate. Well done

 

[rackumrack]

Well, yesterday bought some new shoes. Method 321 18x9 with +18 offset. My truck didn’t come with the Salta’s sadly.

 

[FirstTimeTruckOwner]

Drove just over 1200 miles to Delavan, WI and have been enjoying some snow!

 

[TxRotor]

Today was a busy delivery day, Chem Guys Carbon Force Ceramic for tomorrow. Putco Blade for the tailgate, and DV8 Molle Panels for the console. I also learned my Victory 4x4 Door panels from the Canyon work perfect in the Sierra. Now my First Aid, Trash Can, Tissue Holder, and Storage Bag can hang on Molle Panels as they did in my Canyon along with my Pew Pew.

I had enough GM Points that the dealer threw in with the purchase of the AT4X that the Putco blade was free through the GMC app.

And last but not least a Course Motorsports Magsafe Phone Holder

 

[SmittysAT4]

Gave it a bath after the last few weeks of rain.

 

[Coffeyman76]

Removed the GMC and Sierra badges from the tailgate using one of those eraser wheels. I was never a fan of the silver and how busy it looked. After installing the new wheel/tire combination and so much black from the GFC, I'm contemplating what to do with the side door and tailgate AT4 badges. Remove entirely or replace with factory black. I'll leave them for now.

Check out the covers on Etsy. Just did mine (post about it). Cheap and insanely easy (minutes). Few options on black, flag, etc. if that is your thing.

2026 AT4 Mods - Interior Lights, Black badging, etc.

Wanted to share a few mods that I've gotten done on my new 2500HD AT4. Having come from the identical truck (2024), I wanted to change up a few things and improve some of the shortcomings. Complete so far: 1. Moved over my Decked system and roll-up hard bed cover. 2. Moved over my...

www.at4forum.com

 

[joerone]

Installed Harbor Freight Truck Bed Crane...Getting too old to lift the 100# generator

 

[pinebaron]

Installed Harbor Freight Truck Bed Crane...Getting too old to lift the 100# generator

Not enough to lift wife into the passenger seat; always complains how high the truck is and hates getting in and out on the rare occasions she travels with me.

 

[skw774]

Wrapped my marker lights

 

[TroutBum1971]

Wrapped my marker lights

did you remove them to wrap them or just tint in place? They look good!!!!!!!

 

[skw774]

In place. Took about 20 minutes per light. Took a lot of patience