Skyjacker BUK4584 4.5 Inch Rear Lift Block and U-Bolt Kit

The Skyjacker BUK4584 Rear Block and U-Bolt Kit provides a cost-effective 4.5-inch rear suspension lift solution for 1973-2010 GM 1-ton trucks. This kit utilizes high-quality ductile iron lift blocks and corrosion-resistant U-bolts to deliver increased ground clearance and enhanced off-road capability without compromising durability.

Key Features:

• 4.5-inch rear lift height for improved ground clearance
• Ductile iron blocks with fixed center pins for superior strength
• Tapered block design corrects pinion angle and prevents driveline vibrations
• E-coated U-bolts provide corrosion resistance and long-lasting performance
• Complete kit includes blocks, U-bolts, and all necessary mounting hardware
• Designed specifically for 1-ton applications (excludes crew cab and dually models)

Important Installation Notes:

• Requires wheels with 4-inch minimum backspacing for proper fitment
• Factory OEM wheels cannot be reused with this lift height
• Minor modifications may be required on Duramax diesel models
• Professional installation by a certified mechanic is strongly recommended

Skyjacker has been engineering quality off-road suspension components since 1974, and their block and U-bolt kits are designed to work seamlessly with their complete suspension systems. This rear lift kit is ideal for truck owners looking to level their stance, accommodate larger tires, or achieve a more aggressive appearance while maintaining safe operation and ride quality.