Wilwood’s XRZ4R bracket mounts the XRZ4 Radial Mount calipers to 3.50” center to center lug mount used on the front Late Model and N.E. Modified Asphalt spindles. Mounting height is optimized to allow mounting this caliper in applications that use 11.75” or 12.19” diameter rotors depending on current spindle bracket. Mounts have 10 degree clocking to allow more upper A-arm clearance. Brackets are a pair L/H & R/H and include studs, shim and the mounting hardware. (NOTE THESE MOUNTS ARE ONLY TO BE USED WITH XRZ CALIPERS