Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reduction Driven Gear: Disassembly
- Flatten the tab of the lock nut.
- Using the ST1, ST2 and ST3, counter the rotation of the reduction driven gear, and remove the lock nut.CAUTION: Place cloth between the contacting surface of the vise and the reduction driven gear to prevent reduction driven gear damage.
Preparation tool:
ST1: PULLEY WRENCH (18355AA000)
ST2: PULLEY WRENCH PIN SET (18334AA000)
ST3: SOCKET WRENCH (35) (499987003)
- Remove the ball bearing using ST1, ST2 and a press.
Preparation tool:
ST1: INSTALLER (499757002)
ST2: REMOVER (498077300)
- Using the ST and a press, remove the parking gear and transfer drive gear.
Preparation tool:
ST: REMOVER (899864100)
- Remove the snap ring from reduction driven gear.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.