1 Inch Cast Iron Lift Blocks 01-10 Silverado 4WD/GMC Sierra 2500HD/3500HD 4WD Pair Tuff Country Air & Fuel - Fuel Delivery - Flex Fuel Sensor these high-strength fabricated blocks deliver

these high-strength fabricated blocks deliver long-lasting performance and reliability

The Chromoly weights of this assembly slide on nylon bushings producing smooth movement of the timing

wastegate crack pressure

shielding them from rocks

and monitor the ARC Module timeout feature

1 Inch Cast Iron Lift Blocks 01-10 Silverado 4WD/GMC Sierra 2500HD/3500HD 4WD Pair Tuff Country Air & Fuel - Fuel Delivery - Flex Fuel Sensor these high-strength fabricated blocks deliverTuff Country P N 79064 cast iron lift blocks are designed to lift the rear end of the Silverado Sierra with leaf springs above the rear axle. Details: Rear Lift Blocks Non tapered design 2. 5 inches wide x 1 inch tall Cast iron Designed for rear axle of vehicles only Sold As A Pair Fits: 2001 2010 Chevrolet Silverado 2500HD 4WD 2001 2010 Chevrolet Silverado 3500HD 4WD 2001 2010 GMC Sierra 2500HD 4WD 2001 2010 GMC Sierra 3500HD 4WD Installation Note: