IPS-A Transmissions Drive Unit, Complete IPS-A IPS-A Parts on group Drive Unit, Complete IPS-A: Pos. Part No Qty Parts name Comments 1. 3803836 [1] Inboard drive, exch Ratio 1.94:1 2. 3803834 [1] Upper gear, exch 2. 3. 4. 3803835 [1] Lower gear, exch Parts catalog : Drive Unit, Complete IPS-A. Only When Using Exchange Parts IPS-A Upper Gear Housing. SN-3194005811 IPS-A Upper Gear Housing. SN3194012078- IPS-A Upper Gear Set and Shaft. SN-3194005811 IPS-A Upper Gear Set and Shaft. SN3194012078- IPS-A Oil Pump and Input Bearing Housing IPS-A