The ReadyLift 44-39805 8" Big Lift Kit With Falcon 1.1 Monotube Shocks allows you to mount up to 37” tires on your GM Silverado/Sierra 1500 2WD/4WD. The full-width front skid plate and front & rear cross members in this lift kit are made of 3/16-inch boxed steel plate. The twin gusseted center rib 1/4 plate steel differential drop brackets include a boxed center rib to control the torsional twisting of the front differential.
The "clam-shell" type lower strut extensions in this ReadyLift Big Lift Kit With Bilstein Shocks allow you to use your stock struts without rotating them. To maintain the factory ride quality, these clam-shell brackets use ReadyLift's TCT lower bushings for a precise pivot point. The tubular upper control arms with TCT pivot bushings are a massive improvement over the factory stamped-steel units and ensure additional upper control arm strength. New add-a-leafs, 5" manufactured steel blocks with integrated bump stop landings, and Bilstein 5100 rear shocks have all been fitted to raise the rear.
Features:
- Allows For Up To 37" Tires
- Maintains Factory Ride & Handling
- 3/16” Thick Steel Plate Cross Members & Skid Plate
- Includes Falcon 1.1 Monotube Extended-Length Rear Shocks
- Anti-Torsion Boxed & Gusseted Plate Steel Differential Drop Brackets
- Tube Steel Upper Control Arms With Maintenance-Free Pivot Bushings & 1-Ton Ball Joints
- Exclusive Lower Strut Clam Shell Design Maintains Factory Geometry & Retains Use Of Factory Strut
- Fabricated Steel 5" Rear Blocks Include Integrated Bump Stop Landings & Offset Pin For Proper Pinon Angle
Tire Fitment:
Max tire with no trimming:Â 20x9 0 offset and 37x12.50 tires.
Max with trimming: 20x10 -18 offset - 37x12.50Â - 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.
Notes:Â Â
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.Â
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)
Manufacturer Warranty*:
Lifetime Structural / 1 Year Wearable Components
Lifetime Structural / 1 Year Wearable Components