Skyjacker BUK4565 4.5 in. Rear Block and U-Bolt Suspension Lift Kit

The Skyjacker BUK4565 is a 4.5-inch rear block and U-bolt suspension lift kit designed to add lift height to the rear suspension of 1961–1991 Dodge trucks. This kit uses precision-machined lift blocks installed between the axle and leaf springs to achieve the desired ride height, paired with heavy-duty U-bolts to securely clamp the axle in place after installation.

Key Features:

• Provides 4.5 inches of rear lift using a block and U-bolt design
• Includes heavy-duty U-bolts for a secure, durable axle clamp
• Engineered to Skyjacker's exacting quality standards for long-lasting performance
• Designed specifically for 1961–1991 Dodge truck applications

Important Installation Notes:

• OEM wheels are not compatible — stock factory wheels cannot be reused with this kit
• Requires wheels with a minimum 4-inch backspacing for proper fitment
• Minor modification may be required on Duramax diesel models
• If a rear add-a-leaf is preferred for additional rear lift, order PN R3820 — do not substitute PN BUK2082

Skyjacker's block and U-bolt kits offer a straightforward, cost-effective solution for adding rear lift height while maintaining the integrity of your factory leaf spring suspension system.