ProComp 1” REAR BLOCK KIT – CHEVY/GMC 2500HD

The ProComp 1 Inch Rear Block Kit Chevy GMC 2500HD and 3500HD is a clean and practical rear lift solution for 2011 through 2026 heavy-duty truck owners who need a subtle 1-inch raise at the rear to restore a useful towing and hauling stance without cutting, welding, or making permanent changes to the factory truck. This kit includes rear lift blocks, vehicle-specific U-bolts, and all required hardware for a complete bolt-on installation that keeps the factory rear suspension structure fully intact. At IMM Hawaii Parts, we carry this kit for Silverado and Sierra HD owners who want a dependable, straightforward way to improve rear-load handling without unnecessary complexity.

ProComp 1 Inch Rear Block Kit Chevy GMC 2500HD Bolt On Without Permanent Modifications

The installation process for this kit uses the existing rear suspension mounting points on the 2011 through 2026 Silverado and Sierra 2500HD and 3500HD without requiring any cutting of factory components or permanent changes to the truck. The 1-inch rear lift blocks sit between the axle and the factory leaf spring pack and are held in place by the included vehicle-specific U-bolts and all required fasteners. The bolt-on design keeps the factory rear suspension setup fully intact. It makes the installation reversible for owners who want the flexibility to return the truck to stock configuration at any point without leaving any permanent marks or modifications behind. Customers at IMM Hawaii Parts trust this kit for exactly that kind of clean and commitment-free rear lift solution.

Raises the Rear 1 Inch to Restore Useful Towing Rake

When a Silverado or Sierra 2500HD or 3500HD is loaded with heavy cargo, a toolbox, a sled deck, or a fifth wheel hitch, the rear suspension compresses, and the truck sits flat or slightly nose high. This compressed stance makes the truck less stable under tow, reduces confidence during highway driving with a heavy trailer, and puts the rear suspension closer to its bump stop limit than it should be under normal towing loads. The ProComp 1-inch rear blocks from IMM Hawaii Parts restore the slight forward rake that brings the truck back into the proper towing and hauling stance, improving stability, handling feel, and the overall confidence of working the truck at capacity.

Vehicle Specific U-Bolts for a Reliable and Secure Install

The vehicle-specific U-bolts included in this kit are sized precisely for the rear axle dimensions of the 2011 through 2026 Chevy Silverado and GMC Sierra 2500HD and 3500HD, ensuring a correct clamping fit without the gaps or misalignment that generic U-bolts can create when used on a platform they were not designed for. Heavy-duty trucks like the Silverado and Sierra HD put constant stress on rear suspension hardware through sustained towing, hauling, and rough road driving, and using properly sized vehicle-specific U-bolts is essential for keeping the lift blocks locked in position through that level of use over the long term.

Keeps Factory Ride Quality While Improving Load Handling

This rear block kit works with the existing factory leaf springs and rear suspension components rather than replacing them, which means the factory spring rate, damping character, and ride quality are preserved after the 1-inch lift is added. For Silverado and Sierra HD owners who use their truck for heavy daily work and want the rear lift for practical load handling reasons rather than aesthetic ones, keeping the factory ride quality intact is an important advantage over more involved suspension modifications that can alter the driving character of the truck.

Product Details

Who This Kit Is For

The ProComp 1 Inch Rear Block Kit Chevy GMC 2500HD is the right choice for 2011 through 2026 Silverado and Sierra 2500HD and 3500HD owners who need a simple, clean, and reliable 1 Inch Rear lift solution for restoring towing and hauling rake without cutting or permanent modifications. With vehicle-specific U-bolts, all required hardware included, and preserved factory ride quality, this kit is a practical long-term rear lift solution for heavy-duty Chevy and GMC truck owners. Shop this kit and more heavy-duty truck suspension upgrades at IMM Hawaii Parts, your trusted source for premium lift and leveling solutions for Silverado and Sierra HD trucks.

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