Precision machined caliper mounting brackets for rear disc brake conversions on semi floating axles using GM type calipers. Made from 3/8″ plate steel to Man-A-Fre standards, and black powder coated. If you’re going to rear disc brakes, using GM calipers, modified rotors, and adapter hoses, these brackets are required for mounting the calipers. Complete kit also avail. sku: 42431-RRDISCKIT. Fits E-7/80 semi floaters. Sold as a set with mounting hardware.