Tundra 4WD V8-5.7L (3UR-FE) (2007)
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NO - This TSB does NOT apply.
2. Does the noise go away or is it significantly reduced when driving in 4WD?
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YES - Go to step 4.
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NO - Go to step 3.
3. Install ChassisEAR(TM) (or equivalent) on the vehicle and attempt to isolate the source of the noise in 2WD.
Is the noise loudest near the front differential assembly?
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YES - This TSB applies. Go to step 4.
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NO - This TSB does NOT apply. Continue diagnosis to isolate the source of this noise.
4. Remove the front differential carrier assembly.
Refer to the Technical Information System (TIS) 2007 or 2008 model year Tundra Repair Manual:
2007 or 2008 Tundra Drivetrain - Axle/Differential - "Differential: Front Differential Carrier Assembly (for 4WD): Removal"
5. Examine both front axle assemblies for unusual wear.
Do the axles display any unusual wear where they are inserted into the front differential carrier assembly?
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YES - Replace the affected axle(s).
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NO - Do NOT replace axles.
Differential Disassembly
