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Hope this may help someone - 2021 GMC 1500 AT4 Carbon Pro 4Play Wheels ReadyLift 1.75" Leveling Kit
I just purchased a 2021 GMC Sierra 1500 AT4. These are the parts I installed:
4Play Wheels - Model 4P08 - 22x10 -18 Offset
Purchase 4 Hub-Centric Rings!
Nitto Terra Grappler Tires - 305/45/r22
ReadyLift Leveling Kit
4Play Wheels -
The -18 Offset is so incredibly close to the caliper hump but they clear. No spacers required. They look pretty good. They don't stick out excessively which my personal preference is slightly outside the fender but no where near the -44 Offset look. I personally do not care for solid black wheels on black trucks because you loose the wheel pattern. I live in Texas so 90% of every vehicle is a truck so you see plenty of them. These have Gunmetal Gray powder coat on the top of the spokes so there is some color offset but they mostly look like solid black wheels from a distance. I debated whether to get the all Gunmetal Gray for a major change to the look but I went conservative with black and Gunmetal spokes. You must purchase 4 Hub-Centric Rings. I got everything from Nick at BBWheels and they were awesome and very good pricing.
Part # - 66-3921 - 2019-2021 AT4 1.75" Leveling Kit:
I think instructions say like 3 hours. Ya No, at least not in my driveway with basic hand tools and floor jack and no experience. I also had no experience with CV joints so I made sure to run a strap around spindle so it did not fall back and bind or pull the CV joint out of the transfer case and take care of the angle and how much the CV joint was moving in and out, binding and making sure the strut bolt and strut bolt factory press on nut did not tear boot. This was not easy. Drivers side with setup took about 5 hours. Passenger side once I knew what I was doing took less than hour. Also did not have the large like 37mm socket for the spindle nut so I had to go to Northern Tool to purchase one. All they had was a 38mm and it worked. So I really do not know the correct size of the spindle nut but I got the job done and torqued. In the end for me the job probably rated a 7 out of 10 on difficulty scale simply because of taking care of the CV joints and getting the struts in and out without tearing the CV boots or pulling it out of the transfer case. One other note. I did not like the factory pressed on bottom strut nut. It is too tall and pointy and comes to close to the CV boot when working on the install and after. I removed this nut with a screw driver and mounted the strut bolt top down with a lock nut on the bottom on the side closest to the CV boot. Also got the ReadyLift from Nick at BBWheels.
Nitto Terra Grappler Tires:
To begin I made Discount Tire price match an Amazon price for 33x12.5 Terra Grappler's. Saved like $120 so do it. Next Discount said Corporate would not allow the sale of 33/12.5's because of the AT4's load rating. They said 305/45/r22's had the correct larger load rating so no big deal. They still sold them for the matched Amazon price. Tires ride great no noise look really good. My AT4 has the trailer option so I had 4 tire pressure sensors in glove box. I gave to Discount so they did not have to break down my stock wheels and remove sensors.
The only concern I have simply because this was my first 4 Wheel Drive lift kit I ever installed is CV angles? I Googled 2019/2020 GMC Sierra AT4 CV joint angles after lift and mine looks like everyone else's so? I put an angle finder on the top side of CV shaft before and after. Before on Drivers Side it was +4 after lift +12. Bottomside of Drivers Lower Control Arm +9 after lift +15 degrees. Passenger Side it was -10 after lift -19. Bottoms side of Passenger Lower Control Arm -10 after lift -18 degrees. Does anyone have any expertise on this? Does this seem acceptable? Not sure how or if these angles will change after alignment?
I have a 2014 single cab sierra with a beltech 4/7 drop and was looking around on forums to see what I could do to make the ride better. Most people would just say airbags and not specific kinds or brand it wasn't even the same truck so does anybody know what airbags could probabaly work best with a dropped truck so it could ride better? Any help would be appreciated!!
Hello all! It was suggested I start a build thread so here I am starting one! My truck is a 2016 Silverado Regular Cab with the 5.3L v8 and 6 speed automatic. It has the IOB 7" infotainment center with Apple Play/Android Auto, trailer hitch incorporated into the rear bumper, cruise control, 40/20/40 seats etc and although I originally thought it had 3:42 gears based on the standard items listed on the sticker I somehow missed that my option column shows that it actually has the 3:08 gears. The LT interior was a little too busy looking for me and had a bunch of stuff I didn't really need and about the only option the LS didn't have that I wished for is the steering wheel audio/phone controls but I think I can get by without those especially after finding out from the dealer the cost as well as what it would take to install.
I had modifications in mind before even getting the truck such as lowering, tire/wheel upgrade, increasing performance/handling, upgrading to a competition level audio system (my hobby and side business) and of course plans to personalize it to my tastes. Here's what I have done so far and the more I read this forum the more I add to my list so future plans are below!
Before installing 2" drop shackles and removing spacer block (shows the chrome door handles I installed but did not like so they got changed quickly)
After shackles installed/spacer block removed and color matched handles as well as mirror caps installed
The gold Bowtie looked out of place to me so I color matched the front one using the rattle can custom mix kit you can get on eBay or Amazon along with Duplicolor primer/adhesion promoter
I didn't like the look of the rear Bowtie at all even after color matching so I removed it and I also added the LS emblem to balance out the rear somewhat since now only the LT and LTZ trucks get those emblems for some reason. (I also plan to color match the tailgate handle)
More coming in a few minutes!
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