2019-2021 GMC 1500 6" Big Lift Kit (44-3960)

Fits

 With over 9 months of engineering and development from ReadyLift and more awesome features than we could mention, the bottom line is this Big Lift Kit is the best 6" lift kit you can install on your 1500 4WD truck! Featuring 1/4" boxed plate steel differential drop brackets with a double gusset and boxed center rib to take the abuse of front differential torsional twisting & HD angled and offset top mount strut extensions that realign the struts to optimize shock performance and minimize wear. 

Part Number: 44-3960/ 44-39600

• HD front-rear cross members
• HD skid plate
• HD top mount strut extensions
• Sway bar drop brackets
• HD fab steel rear lift blocks with bump stop landings
• HD cast iron lift knuckles engineered to retain factory quality geometry
• Bilstein 5100 series rear shocks or Falcon 1.1 Monotube shocks
• All necessary hardware & instructions

Tire Fitment: 

• 20x9 0 offset - 35x12.50 tire
• Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20
• 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.

• Use of Auto 4 Hi feature not recommended
• Not for use on Adaptive Ride Control or Multimatic vehicles
• NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable; the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicles equipped with traditional steel leaf springs

Click here for installation instructions