ReadyLift 4'' (4'' + 2'') Big Lift Kit for AT4X and ZR2

With thousands of engineering and development hours and more awesome features than we could possibly mention, these are the best lift kits available on 2026 GM 1500 ZR2/ZT4X trucks!

4" (4” +2”) Big Lift Kit - 2026 GM Silverado/Sierra 1500 ZR2 / AT4X

Features & Benefits

• 4” (4” + 2”) kit yields 6” of total lift with factory 2” lift and ReadyLIFT’s 4” lift
• Delivers clearance for increased aftermarket tire sizes - up to 35x12.50 on 6-inch kit on 9" wide wheels with 0 offsets with no trimming -18 offset will require minor trimming.
• The proprietary lower strut clamshell design maintains factory geometry and retains the use of the factory strut.
• 3/16-inch-thick steel plate cross members and skid plate.
• Anti-torsion boxed and gusseted plate steel differential drop brackets.
• Includes ReadyGuard Powertrain Warranty.
• NOTES: Use of Auto 4 Hi feature not recommended. Not compatible with rear mono-leaf springs.

Specifications

⚠ WARNING (California Prop 65): This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.