F250 / F350 Super Duty 2005-2010 Ford 3" Rear Block and U-Bolt Kit by Rough Country

The Rough Country 6542 Rear Lift Block and U-Bolt Kit is a simple and effective solution for restoring ride height or adding lift to the rear of your Ford F250 / F350 Super Duty. Whether you're correcting rear sag or leveling your truck, this kit delivers reliable performance with an easy installation.

This system includes a pair of 3" tapered lift blocks, designed to raise the rear while helping maintain proper driveline angles. Unlike standard cast blocks, these heavy-duty blocks offer improved strength and durability for long-term use.

Each block features a 9/16" center pin for a secure fit into the factory axle pad, ensuring proper alignment and stability. The included square-style U-bolts are constructed from high-strength steel and finished with a corrosion-resistant black e-coating for long-lasting protection.

With extended thread length for easy installation and a vehicle-specific design, this kit provides a straightforward upgrade for improving stance, load support, and overall appearance.

Features & Benefits

• Provides 3" of rear lift
• Ideal for correcting rear sag or leveling stance
• Tapered lift blocks help reduce driveline angles
• Heavy-duty construction for increased strength and durability
• 9/16" center pin ensures secure axle alignment
• Square-style U-bolts for a precise fit
• Corrosion-resistant black e-coated finish
• Extended thread length for easy installation
• Vehicle-specific design for proper fitment

U-Bolts Spec

• Inside width: 3.625 inches
• Thread size: 5/8 inch
• Insdie length: 15.5 inches
• Style: round