Abstract: A guide pin assembly for a CVT variator includes a retainer and a guide pin coupled to the retainer. The retainer provides at least three functions for the guide pin: pilot, orientation and retention. The guide pin provides lateral and axial constraints to a chain guide through which a chain extends.

Abstract: A guide pin assembly for a CVT variator includes a retainer and a guide pin coupled to the retainer. The retainer provides at least three functions for the guide pin: pilot, orientation and retention. The guide pin provides lateral and axial constraints to a chain guide through which a chain extends.

Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system includes a source of pressurized hydraulic fluid that communicates with a discrete electronic transmission range selection (ETRS) subsystem. The hydraulic control system includes first and second mode valves located downstream of a hydraulic fluid pressure source. The mode valves are supplied with fluid via one or more solenoid valves or other valves. The mode valves have a plurality of ports configured to transfer pressurized hydraulic fluid. The first mode valve transfers pressurized hydraulic fluid from the source to the second mode valve. The second mode valve transfers pressurized hydraulic fluid from the first mode valve to one of drive or reverse. An electro-hydraulic circuit for pulling the transmission out of park and putting the transmission into park is also provided. A park sensor assembly including a Hall Effect sensor switch is also provided.

Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system includes a source of pressurized hydraulic fluid that communicates with a discrete electronic transmission range selection (ETRS) subsystem. The hydraulic control system includes first and second mode valves located downstream of a hydraulic fluid pressure source. The mode valves are supplied with fluid via one or more solenoid valves or other valves. The mode valves have a plurality of ports configured to transfer pressurized hydraulic fluid. The first mode valve transfers pressurized hydraulic fluid from the source to the second mode valve. The second mode valve transfers pressurized hydraulic fluid from the first mode valve to one of drive or reverse. An electro-hydraulic circuit for pulling the transmission out of park and putting the transmission into park is also provided. A park sensor assembly including a Hall Effect sensor switch is also provided.

Abstract: A method is provided for achieving a desired preload on tapered roller bearings which rotatably support a gear between first and second transmission housing members in the assembly of a transmission. The bottom of each pocket which supports a tapered roller bearing is measured with respect to a mating face of the transmission case half. Shims are selected based upon these measurements so that each shim forms a reaction surface upon which the tapered roller bearings rest so that the appropriate preload is established with the case halves are bolted together.

Abstract: A method is provided for achieving a desired preload on tapered roller bearings which rotatably support a gear between first and second transmission housing members in the assembly of a transmission. The bottom of each pocket which supports a tapered roller bearing is measured with respect to a mating face of the transmission case half. Shims are selected based upon these measurements so that each shim forms a reaction surface upon which the tapered roller bearings rest so that the appropriate preload is established with the case halves are bolted together.