IPS20-D Transmissions Drive, Assembly IPS20-D IPS20-D Parts on group Drive, Assembly IPS20-D: Pos. Part No Qty Parts name Comments 1. Ratio 1.70:1 2. 21790153 [1] Upper gear 3. 3801722 [1] Lower gear, exch Ratio 1.70:1 4. 21899310 [1] Clamping ring 5. 3595144 [1] Intermediate housing 6. 3801635 [1] Servo unit, exch 7. 3847628 [1] Protecting casing 8. Parts catalog : Gear Housing, Upper IPS20-D Upper Gear Set and Shaft IPS20-D Oil Pump and Input Bearing Housing IPS20-D Steering Motor EVC C-E IPS20-D Protecting Casing and Companion Flange IPS20-D Lower Gear Unit IPS20-D