Pro Comp Suspension Body Block

Pro Comp Suspension Body Blocks: Precision Rear Lift for Trucks & SUVs

When you need to add rear lift height to a leaf-spring-equipped truck without overhauling your entire suspension, a quality body block kit is one of the most straightforward and cost-effective solutions available. Pro Comp has built a well-earned reputation as a go-to source for these components, engineering their suspension body blocks to work seamlessly within complete lift systems or as standalone rear-lift solutions.

What Are Suspension Body Blocks?

Lift blocks — sometimes called body blocks or rear lift blocks — are used to raise the back of trucks and SUVs that have leaf springs. The block is installed between the axle and the leaf spring, giving the vehicle extra height. This is commonly done to make room for bigger tires or to level the vehicle after modifications to the front suspension. A rear block kit can greatly improve a truck's weight distribution and improve control when towing and hauling heavy loads, and they are very popular for work trucks because they can extend the life of the suspension by reducing rear sag.

Pro Comp's Approach to Body Block Engineering

Pro Comp's block and U-bolt kits are specifically designed to lift the rear of the vehicle and feature tapered lift blocks to improve and retain the vehicle's driveshaft angles — making them the right tool to achieve rear lift on any leaf-spring-equipped vehicle. This taper design is a critical detail: very tall blocks can change driveline angles and ride feel , and Pro Comp's engineering addresses this directly by building the correct angle into the block itself.

Pro Comp offers body blocks across a wide range of lift heights — from 1.5-inch kits all the way up to 5-inch configurations — ensuring there's an option to match virtually any lift goal or truck platform. For example, their 4.0" rear block kit for Ford Super Duty trucks comes complete with vehicle-specific heavy-duty U-bolts and hardware, with factory-style construction that includes integrated bump stop landings and location pins. It adds rake for towing or hauling additional weight in the bed, is easy to install, and does not require any permanent modifications.

Kits include cast iron riser blocks, and the blocks are tapered in order to improve vehicle driveshaft angles — a level of thoughtful detail that sets Pro Comp apart from generic block options. Each kit ships with all necessary hardware so you're not hunting down U-bolts or mounting pins separately.

Backed by the Pro Comp Promise

Pro Comp backs its suspension products with the Pro Comp Promise Lifetime Warranty , giving truck owners confidence that their investment is protected. Pro Comp is also noted as the first aftermarket suspension manufacturer to successfully pass Federal Motor Vehicle Safety Standard Test 126 — stability and avoidance maneuver testing — a distinction that underscores their commitment to safety and engineering integrity across their suspension lineup.

Who Should Consider Pro Comp Body Blocks?

• Truck owners who have installed a front leveling kit and need matching rear lift to restore proper rake
• Work truck operators whose leaf springs have sagged over time under heavy load use
• Off-road enthusiasts looking for additional tire clearance in the rear without a full suspension overhaul
• Builders looking for a cost-effective rear lift component as part of a larger Pro Comp lift system

Explore the full lineup of suspension body blocks or visit the complete Pro Comp brand page to discover the broader range of Pro Comp suspension products built for trucks and SUVs.