Seal, rear axle outer w/ retainer & gasket. 8N to s/n 486752 (1948-1951). Priced & Sold only in pairs. A8NN4248A-PAIR$20.84 Davis Tractor Parts Ford 8N Dept 24263 Antioch Rd. Andalusia, AL 36421 Phone: 334-222-7214 Fax: 334-222-0025 Email: parts@davistractor.com