Zone Offroad F1618 6-Inch Rear Lift Block Kit with U-Bolts for F250 with Overload Springs

The Zone Offroad F1618 is a 6-inch rear lift block kit with U-bolts, specifically engineered for 2011–2016 Ford F-250 Super Duty trucks equipped with factory overload springs. Designed as a standalone rear lift component or as part of a complete suspension upgrade, this block kit delivers a level, aggressive stance while maintaining proper drivetrain geometry.

Key Features:

• 6-inch cast iron rear lift blocks — high-strength construction for maximum durability under load
• Overload spring compatible — specifically designed for F-250 trucks equipped with factory top-mounted overload springs
• Includes matching U-bolts — hardware required for a complete, secure rear block installation
• Correct pinion angle geometry — blocks are engineered to maintain proper driveshaft angles after lift
• Integrated bump stop design — preserves factory-style bump stop function at the new ride height
• Not for dually models — designed for standard single-rear-wheel F-250 configurations

Note: Removal of the factory rear block is required prior to installation. If your F-250 is equipped with a two-piece rear driveshaft, a carrier bearing drop kit (sold separately) may be required to eliminate driveshaft vibration after installation.