ReadyLift - 2.25" Rear Block Kit - 1999-2024 Chevy/GMC 1500 (6-Lug) - 66-3002

2.25" OEM-style cast-iron rear block kit for 6-lug Chevy/GMC 1500 trucks.

OEM-style cast-iron rear blocks with built-in anti-rotation ears safely add rear lift and eliminate the danger of stacking blocks. On 2007-2024 trucks with the factory 1.25" block, this 2.25" block nets about 1" of additional rear lift for towing and hauling; 1999-2006 2WD trucks with no factory block gain the full 2.25". Designed to work with a ReadyLift front leveling kit for a slight rake.

Fits: 1999-2024 Chevy Silverado / GMC Sierra 1500, classic and current body, 6-lug, 2WD and 4WD. Not for use on trucks with rear composite mono-leaf/overload springs (round U-bolts).

Features

• Adds up to 2.25" of rear lift
• OEM-style cast iron with anti-rotation ears
• Includes new U-bolts and hardware
• Restores rake for towing and hauling

Kit Includes

• Two 2.25" rear blocks
• Four e-coated U-bolts
• Eight nuts and washers
• Instructions

Notes

Not compatible with vehicles equipped with rear composite mono-leaf/overload springs (identified by round U-bolts); works only with traditional steel leaf springs. May require longer shocks or shock extensions (67-3809). 2019-up trucks may need excess bolt length trimmed. Estimated installation time about 1.8 hours. Backed by the ReadyLift limited lifetime warranty.