Fluid loss at a shaft seal is slow enough that the unit is damaged before anyone notices the level.10L1000 Extention Metal Clad Seal. The seal is produced to the bore and shaft it serves.The shell and the bore are an interference fit by design. Shipping weight is 1 lb.The parts list below is exactly what ships. Compare it against your teardown before ordering.REMCO has supplied automatic transmission parts since 1991, and every order ships with its part listing so the receiving technician can check what arrived against what was ordered. 10L1000 automatic transmission: metal Clad Seal - replacement component designed for proper fit and function in the intended application Designed to support proper shaft sealing, fluid retention and debris exclusion during a sealing repair Package Includes: one metal clad seal as described, supplied loose for a sealing repair Steel outer shell with a bonded sealing lip and garter spring - designed for dependable service in the intended application. Ships at 1.00 lb, 7x7x2 in Intended for shops chasing external leaks. Drive the seal square with the correct installer and lubricate the lip before install What's in the box1 x Seal, 10L1000 Extention Metal Clad