2020-2022 GM 2500/3500 HD including AT4

3" Front/ 2" Rear SST Lift Kit 

SST lift specific Forged Torsion Keys with front/rear shock extensions, differential spacers, new longer bump stops and longer hardware.

Allows for 20x9 0 offset - 35x12.50 tire.

*Max with trimming: 20x10 -18 offset - 35x12.50 Some fender well variance may be experienced between Silverado and Sierra models.  Can be used on trucks equipped with factory snow prep/plow packages. Works with trucks equipped with either the OE #84461807 or OE #84634344 factory torsion keys and requires ReadyLIFT torsion key unloading tool 66-7822B or similar for installation. NOTE:  Use of Auto 4 Hi feature not recommended.

Special Note:  When setting the torsion key adjustment bolt do not exceed 27.5” from the wheel center to the fender edge. Exceeding this will create a top off condition, meaning the suspension has little to no down travel. The result is poor ride quality, and premature wear of components