Robin It has been a long time since 1972. Go for the new seals and bearings. I had the local shop go through the rear assembly and the cost was only $300 which included all of the above. The unit in the car was the Sure-Grip option. Rodger & Gabby Colo Spgs ''47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler '63 Le Baron w/F-Sweep trunk lid & std A/C '66 Le Baron w/dual A/C & reverbed AM/FM '70 Overlander - InterNational