New Old Stock Polished Halibrand 301 Champ rearend. 9” 31 Spline Locker with dual splined axles, broached steel hubs in 5 on 4.5 and 5 on 4.75 bolt patterns. The rear end measures 57 1/8” from outside the axle flange to the outside of the other axle flange. Where the wheels mount. Never run, never installed and never had gear oil. Mint condition and ready to run.