A/T - KM Series Pump Drive Gear Seal Identification
TECHNICAL BULLETIN # 160TRANSMISSION: KM SERIES TRANSAXLE
SUBJECT: PUMP DRIVE GEAR SEALS
APPLICATION: CHRYSLER/MITSUBISHI/HYUNDAI
KM SERIES TRANSAXLES PUMP DRIVE GEAR SEALS
The KM series transaxles use two types of seal systems to seal the inside of the pump drive gear to the torque converter hub.
The first style (not shown) was an "0" ring installed in a groove machined halfway down the inside of the drive gear. No installation questions there.
The second style seal system, included both a Seal Ring and a Snap Ring installed into a big step, machined into the side of the gear (see illustration). Questions come in about assembly order and gear installation direction. Use illustration to make sure you assemble the pump gear in the correct order and direction.