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.
2005 Lexus GX 470FACTORY OEM SERVICE PROCEDURE
Transfer System: Precaution
- Before disassembly, clean the transfer assy and remove any deposited sand or mud to prevent it from entering the inside of the transfer during disassembly and assembly.
- When removing any light alloy part such as a transfer cover, do not pry it off with a tool like a screwdriver but tap it out with a plastic hammer.
- Always organize the removed parts properly and protect them away from dust.
- After cleaning and drying completely before installation, apply hypoid gear oil to each part. Do not use alkaline chemicals when cleansing aluminum or rubber parts and ring gear set bolts. Also, do not use any cleansing oil (ex. white gasoline) to clean the rubber parts such as oil seals.
- Sufficiently apply hypoid gear oil to any sliding surface or rotating part.
- Do not directly hold a part by vise. Make sure to put an aluminum sheet between them.
- Replace any damaged or deformed snap ring with new one.
- If mating surface of the case is scratched, it may cause oil leakage. Therefore, carefully avoid such damage when handling.
- Using a razor blade and gasket scraper, remove old FIPG from seal surface.
- Clean all the components to remove the redundant FIPG completely.
- Clean sealing surface with solvent so that any residue does not remain on the seal surface.
- Apply FIPG in an approx. 1.2 mm (0.047 in.) diameter of bead state along the sealing surface.
- Be sure to assemble parts within 10 minutes of application. Otherwise, the FIPG must be removed and reapplied.
- Do not fill oil immediately after installing sealed parts. Leave it 1 hour or more.
- Scratches on the contact surface with an oil seal or gasket may result in oil leakage. Handle with care to prevent such damage.
- When press-fitting an oil seal, take care to prevent the oil seal lip and its periphery from being damaged.
Factory Service Tools
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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.