Is the rough country “leveling kit” really the only one that will work on thr At4x??? Just got a brand new 2023 and not looking to put a kit that appears cheap on it?
What did you do to your AT4 today?
- Thread starter LamboTexas
- Start date
Make sure you have good quality hub-centric spacers. I don’t like spacers for that reason.
Replaced with hub centric spacers. Have about 3/8” to the knuckle of the UCA.
cabock
New member
Pingbling23
Active member
That sounds good cabock, maybe a little too loud for me. I’m still on the fence wether to leave my exhaust stock for a while, muffler delete, magnaflow muffler swap, rough country cat back, or pony up for a borla touring or s type.
Took a 4-hour trip up to Elkhart, IN over the weekend to referee at the 2023 U19 Boys Highschool National Rugby Championships. Very pleased with the MPG up and back for a 6.6L diesel. Here's a screenshot on the way back home.
![IMG_0654[1].JPG](https://www.at4forum.com/attachments/img_0654-1-jpg.3985/ "IMG_0654[1].JPG")
Overall, it averaged out at 20.0 MPG's after the trip!
Overall, it averaged out at 20.0 MPG's after the trip!
Rhynofooter
New member
Yes it is. 20%
Peak suspension makes a level kit as well. a spacer and a collar spacer I think
adeerchaser
Well-known member
I know to each his own, but gotta ask- have seen a few of you on here wanting to change the suspension on a “X”. You gotta pay extra to get a “X” with the stuff it has, one big one being the all new great riding suspension. Why not get a AT4 to mess with? The money saved will prolly pay for suspension change.
It's a good question. The X does come with a few things the 4 doesn't, but not a lot. I mean, I don't need massaging seats, didn't even know there was a thing in these trucks, but now that I have them I like them. And the DSSV shocks on the X are much nicer than the Ranchos. Even though I have front levelled my X, and now have airlift airbags in the back, the X still rides better than the 4.
I got the 23 X because my 2020 AT4 was down and out in the shop.... for a month with no end in sight, and I needed a truck to get me back to Montana from NE.
The X really should come like the ZR2 is kitted out - a 3" lift, 33" tires and the more offroad front and rear bumpers. Now the current AT4X's come with the offroad bumpers, but mine was one of the last ones that didn't. I didn't even know the change was being made by GM to the rest of the 23 AT4X's. But then I was in a pickle needing a truck to get me home to MT after a month of my 2020 AT4 being unfixed in the dealership shop.
adeerchaser
Well-known member
I agree, to me it is just GM putting on what is lowest bidder. I stuck with factory wheels and made no changes to front suspension- now running Toyo MT 285/70/18. It is even taller than the 33‘s, it is a 34.2 in tall tire. No issues, no rubbing, no cutting. There is room. GM just did not use it all. I was more speaking to the folks who lose the DSSV ride to install a lift/level.
Sierras have long had the boxy wheel wells. It is this that causes the rub with bigger tires. Obviously sticking with a stock positive offset is going to make a huge difference in what size tires will fit.
I don't feel I lost much of the DSSV ride with the front level or airbags. Some, sure, but not a lot. It still rides a lot nicer than my 2020 AT4 did (and it's not like the 2020 was bad or anything), and my wife has a 2020 AT4 carbon pro, and my X still rides nicer than hers.
I don't like trimming, but it is worth it to me to fit the offset wheel and tire size I prefer. No one else would even know, unless I showed them or they looked real close, that there is some trimming done. My biggest worry is always - does this or can this, void my factory warranty. Which may depend a lot on the dealer and shop one takes their truck to.
adeerchaser
Well-known member
True Dat! Just hope it never becomes a issue for ya.
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