Rear Block Kit 2in with U-Bolts

The SKYJACKER Rear Block Kit 2in with U-Bolts (SKU BUK2061) is a leaf spring block suspension lift designed to raise the rear axle of full-size GM trucks and SUVs from 1988–1999. This 2-inch lift block kit includes all necessary U-bolt hardware for a complete rear suspension modification, delivering straightforward height gain without complex linkage adjustments. The iron construction with natural finish provides durability in demanding off-road and work environments where reliable suspension geometry is essential.

Leaf spring blocks work by inserting a solid iron spacer between the spring pack and the rear axle, effectively raising the ride height while maintaining the original spring rate and load capacity. The 2-inch height increase creates measurable ground clearance gain suitable for light to moderate terrain while keeping the vehicle's center of gravity and handling characteristics within acceptable parameters for stock or mildly upgraded powertrains. The included U-bolts secure the block assembly to the axle, replacing factory hardware with corrosion-resistant fasteners designed for repeated suspension articulation.

This kit is intended for owners of 1988–1999 GM C/K-series pickups and full-size sport utility vehicles seeking controlled rear lift without air suspension conversion or complex coilover installation. The straightforward bolt-on design appeals to builders balancing budget, durability, and practicality—particularly those planning to retain factory suspension geometry and operate their vehicles in varied terrain without extreme flex requirements. Installation requires basic hand tools and jack equipment; no welding or frame modification is necessary.

Leaf spring block lifts remain a proven approach for classic and work-oriented trucks where simplicity and cost-effectiveness matter more than advanced damping control. Weighing 13.95 lbs and arriving pre-assembled with hardware, the SKYJACKER rear block kit shortens installation time and reduces the need for sourcing separate fasteners, making it an efficient choice for straightforward suspension upgrades on older GM platforms.