Compatible/Replacement for 1970-72 1961-66 F-Series 100 2WD and 4WD pickup truck. Compatible/Replacement for 1970-72 1966 F-Series 250 2WD pickup truck. Compatible/Replacement for 1970-72 1966 Bronco with 10" or 11" rear drum brakes. 1" bore size. Push rod depth of 0.810".
