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