Our 1963-87 ChevyC20 truck rear disc brake conversion kit offers you the option of upgrading the rear of your truck to perform like the front. These kits are available in the 8-lugbolt pattern and come standard with GM ratcheting emergency brake integrated calipers. Custom caliper brackets allow for installation on Dana 60 and GM 14 bolt “FULL FLOATING” rear ends. Works with rear ends that have “Bolt On” backing plates. See detailed images for picture of full floating compared to semi floating rearends.