Skyjacker BUK5574 Rear Lift Block and U-Bolt Kit 5.5 Inch

The Skyjacker BUK5574 is a rear suspension lift block and U-bolt kit designed to provide 5.5 inches of rear lift for 1966-1996 Ford F-100/F-150 4WD trucks. This kit is an essential component for achieving proper rear suspension height when installing a complete lift system or leveling your truck's stance.

Key Features:

• Ductile iron lift blocks with fixed center pins for superior strength and stability
• Tapered block design corrects pinion angle and prevents driveline vibrations
• E-coated U-bolts provide excellent corrosion resistance for long-lasting durability
• Precision-engineered to deliver 5.5 inches of rear lift height
• Includes all necessary U-bolts and hardware for installation

Installation Notes:

• Requires wheels with 4-inch backspacing minimum
• OEM factory wheels cannot be reused with this lift height
• Minor modifications may be required on certain models

Skyjacker has been a trusted name in suspension systems for over 40 years, delivering quality lift components that maintain ride quality while providing increased ground clearance. The tapered block design is critical for maintaining proper driveline geometry and preventing vibration issues commonly associated with rear lift blocks.