Rear axle-shafts from a 1978-79 Ford bronco has 31 spline axles and the big wheel bearings, and 5 1/2" bolt diameter. From a Bronco, wheel bearings were good Axles are 32” long, weigh 18 pounds each(according to axle catalogs) bearings and retainer plates, and brake drums from same- 11” x 2-1/4” wide Must pick up here, won’t ship