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.
Extension Case: Installation
- Clean the mating surface of extension case and transmission case.
- Select the transfer drive gear shim. Refer to ADJUSTMENT .
- Select the transfer driven gear shim. Refer to ADJUSTMENT .
- Attach the selected transfer drive gear shim to extension case with vaseline.
- Attach the selected transfer driven gear shim to extension case with vaseline.
- Install the O-ring to the transmission case.
- Apply liquid gasket to extension case seamlessly.
Liquid gasket:
THREE BOND 1215 (Part No. 004403007) or equivalent
- Install the extension case to transmission hanger.
Tightening torque:
25 N.m (2.5 kgf-m, 18.4 ft-lb)
- Install the transmission assembly. Refer to INSTALLATION .
Use the Manual With the Right Hardware
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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.
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