The Eibach Pro-Truck Rear Lift Block Kit elevates GMC Sierra 1500 trucks by 1 inch to enhance towing and cargo performance. Crafted from 6061-T6 billet aluminum with an anodized finish, this pair of blocks replaces factory blocks, ensuring durability and corrosion resistance. Designed for Sierra 1500 standard, extended, and crew cab models, it includes U-bolts and hardware for bolt-on installation. Ideal for leveling under heavy loads, it’s not compatible with Adaptive Ride Control. Includes a one-year manufacturer warranty.