ATP HM-9 Automatic Transmission Master Repair Kit Premium clutch material provides smooth shifting, load stability, and high wear resistance Steel plates are manufactured to precise measurements for seamless installation and shudder free performance Gaskets, seals and O-rings are exact fit replacements Parts are vacuum packaged to boards and sealed in bags to ensure all components arrive uncompromised For rebuild of 1991-97 AOYA, AAPX4, APXA, MPOA, MPWA, MPXA, PX4B transmissions