Tuff Country P/N 79059 cast iron lift blocks are designed to lift the rear end of the GM 2500HD/3500/3500HD 4WD vehicles with leaf springs above the rear axle.
Details:

• Rear Lift Blocks
• Non-tapered design
• 2.5 inches wide x 4 inches tall
• Cast iron
• Designed for rear axle of vehicles only
• Sold As A Pair

Fits:

• 2001-2010 Chevy Silverado 2500HD/3500HD 4WD
• 2001-2010 GMC Sierra 2500HD/3500 4WD

Installation Note:

• May not fit all vehicles