Rear Main Seal (rope) fits the 1940-63 Chevrolet and GMC Truck 6 cylinder 216, 235 and 261 cubic inch engines.
Note: There are two options for material-rubber and rope. The rope option is included in the complete engine set.
Best set # 6100 (rope) **pictured**
Best set # 4519S
Made in the USA!

1940-63 Chevrolet and GMC Truck 6 cylinder Rear Main Seal for the 216, 235 and 261 cubic inch engines in rope