Rear Main Seal (rope) fits the 1949-58 Oldsmobile V8/1955-59 GMC Truck V8 303, 324, 370 and 371 cubic inch engines.
Best set #5145 (rope) **pictured**
Best set #3772 (rubber) through 1956 only
Best set #3A46 (rubber) 1957-59 only
Made in the USA!