ReadyLift 44-3985 8" Big Lift Kit With Bilstein Shocks

The ReadyLift 44-3985 8" Big Lift Kit With Bilstein Shocks allows you to install up to 37” tires on your GM Silverado/Sierra 1500 4WD. This lift kit contains front & rear cross members as well as the full-width front skid plate that is manufactured from 3/16" plate steel boxed steel. To manage the front differential’s torsional twisting, the double gusseted center rib 1/4" plate steel differential drop brackets have a boxed center rib.

This ReadyLift 8" Big Lift Kit With Bilstein Shocks features "clam-shell" style lower strut extensions that retain the use of the stock struts without strut rotation. These clam-shell brackets utilize ReadyLift’s TCT lower bushings for a precise pivot point that maintains the factory ride quality. The tubular upper control arms with TCT pivot bushings ensure extra upper control arm strength which is a massive improvement over the factory stamped-steel units. To lift the rear, an add-a-leaf has been added and 5" fabricated steel blocks with integrated bump stop landings added as well as new Bilstein 5100 rear shocks

Max tire with no trimming:  20x9 0 offset and 37x12.50 tires.

Max with trimming: 20x10 -18 offset - 37x12.50  - Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front rear well edge mud flap.

Application Notes:  

Use of the Auto 4 Hi feature is not recommended.

Not for use on Trail Boss, AT4, AT4X, ZR2, or Denali models.

Not compatible with Adaptive Ride Control or Multimatic suspension.

Diesel applications may require a small modification to the transmission line bracket. 

This kit is not compatible with vehicles equipped with rear composite mono-leaf springs.

This kit is only compatible with trucks equipped with traditional steel leaf springs with the ‘square’ U-bolts.

This lift lit will require the ReadyLift 67-35150UB U-Bolt Kit to fit late model 2024 or 2025 applications that have round U-bolts.(See Add-Ons)