Original factory part, for 9 inch N-case nodular rear axle assembly w/ necked-down tube on passenger-side use. Forged-steel w/ (Ford) oval logo, it measures 31-25/32” long outer flange to inner tip. No bearing but should probably replace it anyway, has rectangular outer retainer, no wheel studs. Includes seal lip ring w/ clean surface, some shafting black heat treatment shows, splines appear straight. From a '71 / ’72 / ‘73, however '67 / '68 / '69 / ’70 are different. It’s an OEM Ford item typically produced w/ 3.25 / 3.50 / 3.91 / 4.11 ratio axles, w/ correct form & fit for a mach 1 / Boss 351 / Grande / convertible / Cobra / Gran Torino / Ranchero / Mercury Cougar / XR7 / Cyclone, including Super Cobra Jet Drag Pack, why go aftermarket.