Skyjacker BUK3584 3.5 Inch Rear Lift Block and U-Bolt Kit

The Skyjacker BUK3584 is a 3.5-inch rear suspension lift block and U-bolt kit designed to provide increased ground clearance and improved off-road capability. This kit is engineered to deliver reliable rear lift performance while maintaining proper driveline geometry and ride quality.

Key Features:

• Ductile iron lift blocks with fixed center pins provide exceptional strength and durability
• Tapered block design corrects pinion angle to prevent driveline vibrations
• E-coated U-bolts offer superior corrosion resistance for long-lasting performance
• Complete hardware included for straightforward installation
• Engineered specifically for 1-ton crew cab applications

Important Installation Notes:

• Requires wheels with a minimum of 4 inches of backspacing
• Factory OEM wheels cannot be reused with this lift height
• Minor modifications may be required on Duramax diesel models
• If rear add-a-leaf is preferred for rear lift, order part number R3820 instead

Skyjacker has been manufacturing premium suspension components since 1974, with products extensively field-tested by real off-road enthusiasts. This block and U-bolt kit delivers the quality and performance expected from the Skyjacker Rock Ready brand.