[thegreenman]

A few months after I bought my Vette I noticed some noises in the rear and found out my axle nut was loose, if memory serves me right I torqued to 120lbft. Its been a few months since I last checked and I decided to check them today to make sure they were still tight (they were), then I thought I would pass on to the VB as the C6's are known to have loosening axle nuts for some.

There is debate on how much torque to use, I went with 120lbs, the Chevy document below mentions 160lbft.

Another helpful tip, if using locktite, use blue, not red.

I didn't need to use locktite or order a new nut as the Chevy doc recommends, but I check them a couple times a year to make sure they are tight.





Document ID# 2018487
2005 Chevrolet Corvette


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Subject: Tapping or Scraping Noise From Rear Wheel Area (Replace Wheel Drive Shaft Nut) #07-04-95-001 - (09/26/2007)



Models: 2005-2008 Cadillac XLR

2005-2008 Chevrolet Corvette




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Condition
Some customers may comment on a tapping or a scraping noise coming from the rear wheel area.

Cause
This condition may be due to the torque on the wheel drive shaft nut relaxing over time.

Correction
Replace the left and the right wheel drive shaft nut following the procedure below.

Remove the center cap from the rim.
Remove and discard the wheel drive shaft nut.
Apply LOCTITE™ 272, or equivalent, to the threads of the axle shaft.
Install the nut and tighten to the new specification.
Tighten
Tighten the nut to 215 N·m (160 lb ft).

Install the center cap to the rim.
Important: The vehicle should not be driven for 24 hours following the repair in order to allow the thread lock to cure.

Parts Information
Part Number
Description
Qty

10257766
Nut
2 (one per side)


Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

F9712*
Wheel Drive Shaft Nut - Replace
0.3 hr

*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.




GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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Document ID# 2018487
2005 Chevrolet Corvette