Collection: Auto - Suspension Leaf Spring Block Kit

Adjust your rear stance and safely clear oversized tires with our selection of Auto Suspension Leaf Spring Block Kits. At DIY Customs, we provide high-strength cast iron and billet aluminum lift blocks, specialized tapered blocks for driveline angle correction, and heavy-duty extended U-bolt kits designed for a perfect fit on leaf-sprung trucks, SUVs, and classic cars. Whether you are seeking a specialized 1-inch lowering block kit to dial in your street truck's stance, outfitting your off-road rig with specialized 3-inch rear lift blocks to level out a heavy front bumper, or seeking specialized hardware combinations for towing support, our professional-grade chassis gear offers the structural safety and load capacity you need at unbeatable prices. From specialized anti-wrap blocks to direct-fit kits for popular platforms like Silverado, RAM, F-150, and Tacoma, we carry the essential components for every rear suspension project. Don't see the specific block height, pin diameter, or specialized U-bolt length for your axle setup? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!