What 2Many said plus a common repair is to put a Speedy Sleeve over the seal worn area of the pinion. Worked for me.

Good Luck

RonR


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5