No Reverse In R Range

1. Incorrect oil pressure.
2. Damaged reverse servo piston or seal.
3. Reverse servo improperly assembled or improper apply pin installed.
4. Damaged or defective oil pump.
5. Damaged input clutch accumulator piston seal.
6. Damaged drive link assembly.
7. Burned, damaged or improperly installed reverse band.
8. Damaged or defective input clutch.
9. Defective input sprag.
10. Reverse reaction drum splines, input carrier and/or reaction carrier damaged.