Tuff Country 4in Rear Block & U-Bolt Kit – 1973–1987 Chevy/GMC 3/4 Ton Truck 4WD (97010)

Raise and level the rear of your Chevy or GMC 3/4-ton truck with the Tuff Country 4” Rear Block & U-Bolt Kit. This kit is designed to provide a moderate rear lift while maintaining factory ride quality, making it a great option for trucks used for towing, hauling, or achieving a more balanced stance.

This system includes heavy-duty cast lift blocks that install between the rear leaf springs and axle, along with extended U-bolts designed specifically for proper fitment. The tapered block design helps reduce driveline vibration and maintain proper pinion angle after lifting.

Ideal for pairing with a front leveling kit or lift, this setup improves both appearance and functionality while keeping your build simple and reliable.

Features:

• Provides 4” of rear lift for improved stance and leveling
• Designed for Chevy/GMC 3/4-ton 4WD truck applications
• Tapered block design helps reduce driveline vibration
• Heavy-duty cast lift blocks for strength and durability
• Includes extended U-bolts for secure installation
• Maintains factory-like ride quality
• Simple bolt-on installation
• Ideal for leveling or complementing front lift setups
• Durable finish for corrosion resistance
• Made in the USA
• Backed by manufacturer limited lifetime warranty

Fitment:

• 1973–1987 Chevy Truck 3/4 Ton (4WD)
• 1973–1987 GMC Truck 3/4 Ton (4WD)

Notes:

• Rear lift only (front components not included)
• Professional installation recommended
• U-bolts should not be reused; always use supplied hardware
• Extended shocks are recommended for lifts over 2”
• Check driveline angles after installation