Grandville 7.5L With Short Block Engine 1971, Accu Seal Pro Rear Main Seal (22805) by SCE Gaskets. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost. This is the original purpose built molded rear main seal to replace the rope seal for the . Designed with years of experience and commitment to excellence, this superior SCE Gaskets product will give your steel stallion the performance you're after.