10/15/2026
This 2026 GMC Sierra 2500HD AT4X is looking even better on 37s!
We fitted this truck with Cognito torsion bar keys, upper control arms, and front shock extenders to make room for 37" Falken Wildpeak A/T4W tires wrapped around 20" Fuel Surge wheels.
A few suspension upgrades and a new wheel and tire setup made a big difference in this AT4X's stance!
Check it out here: https://mountzionoffroad.com/portfolio/2026-gmc-sierra-2500hd-at4x/
-