Skyjacker BUK3591 3.5 Inch Rear Lift Block and U-Bolt Kit for 1973-1987 GM 3/4 Ton

The Skyjacker BUK3591 is a complete rear lift block and U-bolt kit designed to provide 3.5 inches of lift for 1973-1987 GM 3/4 ton trucks. This kit includes everything needed to safely raise the rear suspension while maintaining proper drivetrain geometry.

Key Features:

• 3.5 inch lift height for improved ground clearance and leveling
• Ductile iron lift blocks with fixed center pins for secure installation
• Tapered block design corrects pinion angle and prevents driveline vibrations
• E-coated U-bolts provide superior corrosion resistance
• Heavy-duty construction for long-lasting durability
• Direct fit application for 1973-1987 GM 3/4 ton pickup trucks

Skyjacker's precision-engineered lift blocks maintain proper rear axle alignment while raising your truck's stance. The included U-bolts are specifically sized for this application and feature protective e-coating to resist rust and corrosion. The tapered block design is critical for preventing drivetrain vibration issues that can occur with inferior lift blocks. This kit provides a cost-effective solution for leveling your truck or achieving additional lift when combined with front suspension upgrades.