Cadillac V8 1949-62 Rear Main Seal
Rear Main Seal for the 1949-62 Cadillac V8 fits the 331, 365 and 390 cubic inch engines.
Note: For the 331 cubic inch engine there are two material options- rubber (pictured) and rope.
For the 365 and 390 cubic inch engines there are also two material options- rubber (pictured) and rope. However, for the rubber option there are different options based on the year of your specific model.

1949-62 Cadillac V8 Rear Main Seal for the 331, 365, and 390 cubic inch engines