Skyjacker Suspension Suspension Body Block
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Skyjacker Suspension RB257 5.5 Inch Rear Lift Blocks for 2011+ HD Trucks
Skyjacker RB227 2-Inch Rear Lift Blocks for 1994-2003 Dodge Ram 2500
Skyjacker Suspension Body Blocks: Engineered Rear Lift with Off-Road Precision
When it comes to raising the rear of a leaf-spring-equipped truck or SUV, few components are as straightforward — or as easy to get wrong — as the suspension body block. Suspension body blocks are solid spacers that mount between the leaf spring and the axle, adding measured rear lift height without disturbing the front suspension geometry. Done right, they level a sagging stance, make room for larger tires, and restore proper rake for towing. Done with inferior hardware, they can introduce driveline vibration, pinion angle problems, and premature wear. That's exactly why the quality of the block material and design matters — and why Skyjacker Suspension has been a trusted name in this space since 1974.
What Sets Skyjacker Body Blocks Apart
Skyjacker doesn't cut corners when it comes to the metallurgy or geometry of its body blocks. Ductile iron construction is a hallmark of their block lineup — a material choice that delivers the strength and impact resistance required for demanding on- and off-road use. Unlike basic steel or aluminum blocks, ductile iron provides consistent dimensional stability under load, which is critical for maintaining ride quality and axle positioning over time.
Perhaps the most important engineering detail in Skyjacker's body block kits is their tapered design with fixed center pins. Skyjacker's suspension body blocks are tapered specifically to correct pinion angle after a lift is installed, helping prevent the driveline vibration that can plague improperly configured rear lifts. The fixed center pins keep the block precisely located on the axle pad, eliminating the risk of lateral migration that can compromise handling and safety.
Complete Kits with Corrosion-Resistant U-Bolts
A body block is only as reliable as the hardware holding it in place. Skyjacker pairs every block with purpose-built U-bolts that are e-coated for corrosion resistance, an important feature for trucks that see mud, salt, and harsh weather. These U-bolts are available in multiple configurations — square, round, and semi-round — in lengths spanning from 1.75 to 19 inches, ensuring a proper fit across a wide range of truck platforms including Chevrolet/GMC, Dodge, Ford, Jeep, and Toyota applications.
Skyjacker's body block lineup spans lift heights of 1.25, 2, 3.5, 4.5, and 5 inches, giving builders flexibility whether they're correcting a leveling-kit rake, compensating for sagging leaf springs, or dialing in rear lift height as part of a larger suspension system. These blocks are also commonly integrated into Skyjacker's full suspension lift kits — often paired with their legendary Softride® Technology add-a-leaf springs — to yield a more level stance while preserving ride quality.
The Right Block for a Balanced Build
Skyjacker's suspension body blocks are designed to complement the brand's broader ecosystem of lift components. Whether you're running a mild rear correction or building out a serious off-road rig, selecting the right block height and pairing it with properly matched U-bolts and shocks is key to a safe, well-performing result. Skyjacker's detailed installation guides and vehicle-specific fitment ensure the guesswork is removed from the equation. Explore the full Skyjacker Suspension brand page to see how body blocks fit into a complete suspension upgrade strategy.
