In 4th gear and 5th gear, both the front ring gear and front planetary carrier assembly are output members of the front planetary gearset. The front planetary gearset provides both a 1:1 and 1.52:1 gear ratio to different members of the rear planetary gearset.
In 6th gear, the front ring gear is the only output member of the front planetary gearset. The front planetary gearset provides a 1:1 gear ratio to the rear planetary gearset.
The rear planetary gearset is a ravigneaux planetary gearset and has the following components:
Rear planetary No. 2 sun gear
Rear planetary No. 3 sun gear
Rear planetary carrier assembly (2 sets of pinion gears)
Rear planetary ring gear assembly
Power flow through the rear planetary gearset is as follows:
In reverse, rear sun gear No. 2 is driven, the rear planetary carrier is held and the ring gear is the output (2.24:1 with reverse direction)
In 1st gear, sun gear No. 3 is driven, the rear planetary carrier is held and the ring gear is the output (2.74:1)
In 2nd gear, sun gear No. 3 is driven, sun gear No. 2 is held and the ring gear is the output (1.54:1)
In 3rd gear, sun gear No. 3 and sun gear No. 2 are driven and the ring gear is the output (1:1)
In 4th gear, sun gear No. 3 and the rear planetary carrier are driven and the ring gear is the output (1.14:1)
In 5th gear, sun gear No. 2 and the rear planetary carrier are driven and the ring gear is the output (0.87:1)
In 6th gear, the rear planetary carrier is driven, sun gear No. 2 is held and the ring gear is the output (0.69:1)
DESCRIPTION AND OPERATION > PUMP ASSEMBLY
Pump Assembly and Transmission Fluid Filter
This transmission has a gear type pump that supplies transmission fluid pressure to the hydraulic system. The inner (drive) gear is turned by the torque converter hub. The transmission fluid pump has the following parts:
Pump body, with inner (drive) and outer (driven) gears
Centering plate
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.