Differential Assembly: Service Precautions

2011 Toyota FJ Cruiser 2WD V6-4.0L (1GR-FE)SECTION Service Precautions




DIFFERENTIAL: DIFFERENTIAL SYSTEM: PRECAUTION

1. Before disassembling the differential assembly, thoroughly clean it to remove any sand, mud or foreign matter. This will help prevent contamination during disassembly and reassembly.

2. When removing the rear differential carrier cover or any other light alloy part, do not pry it off with a screwdriver or other tool that may cause damage. Instead, tap the part with a plastic-faced hammer.

3. Always arrange disassembled parts in the order they were removed and protect them from foreign matter.

4. Before installation of each part, thoroughly clean and dry it. Then apply hypoid gear oil LSD to it. Do not use alkaline chemicals to clean aluminum parts, rubber parts or ring gear set bolts. Also, do not use white gasoline or other cleaning oils to clean O-rings, oil seals or rubber parts.

5. Coat sliding surfaces or rotating parts with hypoid gear oil LSD.

6. Do not fix a part directly in a vise. Place aluminum plates between the part and vise.

7. Be careful not to damage the contact surfaces of the case. Such damage may cause oil leakage.

8. Before applying sealant, remove deposited oil sealant and clean the part to be sealed using white gasoline.

9. After sealing parts, do not allow oil to come into contact with the seal for at least an hour.

10. Do not allow scratches on surfaces which contact an oil seal, O-ring or gasket. Scratches may lead to oil leakage.

11. When press-fitting an oil seal, be careful not to damage the lip of the oil seal or its outside periphery.

12. When replacing a bearing, replace the inner and outer races as a set.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.