Hinson Urethane Corvette Lift Pads Jack Pads Lift Pucks Jack Pucks (Set of 4) The highest quality all urethane construction lift and jacking pads for Corvettes and other slotted hole frame designs. These durable urethane mounts will not compress or scratch the frame rails. Increased clearance for cars with side skirts. Insert the lift pad in to the frame rail slot, rotate, and release. The pads will stay in position while the lift arm or floor jack is positioned. Purchase from Hinson Motorsports with peace of mind and security. Buy with confidence because Hinson Motorsports backs its products 100 percent. Made in the USA. Pads must be removed before driving the vehicle.