Specify forward Pinion Flange width (3 3/4" or 4 1/4" measured at widest point) - the 3 3/4" wide flange uses a driveshaft "U" joint which measures 3 1/4" wide and the 4 1/4" wide flange uses a 3 3/4" wide "U" joint - Does Not include rear cover or side yokes - 1963-64 1st design "Dana" rear ends are not acceptable for core refund
Includes New Bearings, Seals, Ring & Pinion, & Posi Clutch Pack. 2 year limited warranty.