THM700-R4 (4L60, MD8) Automatic Transmission Plastic Input To Output Shaft Seal With Splines | Fits Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile Automatic Transmission Plastic Input To Output Shaft Seal With Splines (8642178). 1981-1992 THM700-R4 (4L60, MD8) Compatible with / Fits Avanti, Bentley, Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac And Rolls-Royce Vehicles1987-1991... Part #: 74475 MSRP: Was: Now: $1.99 Decrease Quantity: Increase Quantity: Add to Cart