Up for sale is a NEW Rear Axle Pinion Oil Seal. Outside diameter of seal is 3.750 inches. **NOTE: Two different pinion seals were used during these years, please measure the Outside Diameter of the one on your car to be sure this is the size you need.** High quality modern rubber seal to keep dust & dirt out and keep axle lubricant in. Stop your Rear Axle Pinion leak or drip today! This will fit the following automobiles:
1957-1959 Cadillac - (except those with Differential Carrier Casting Numbers 1473735 or 1473782)