Scraping noise - Corvette Forum
 
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post #1 of 4 (permalink) Old 03-25-2014, 06:52 PM Thread Starter
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Question Scraping noise

2008 C6 Automatic: made a left turn at slow speed into a parking lot recently and heard a scraping noise coming from rear of the car. has anybody ever had this problem? visual inspection turned up nothing that appears wrong and no foreign objects. trans temp runs 165-195 with ambient temp at 85. any ideas would be appreciated THANKS SKIP
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post #2 of 4 (permalink) Old 09-21-2014, 09:43 PM
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Sounds like you need to replace your diff fluid. The new LS diff fluid does not require additional friction modifier. Takes around two quarts, but purchase three so you have enough to get two in there.

Then go do around ten figure eights to get the fluid in the clutch packs.

While you are at it, check your axle nuts to make sure they are tight.

If not you can torque them to 130 ft-lbs for now, but best to get new style axle nuts which require 160 ft-lbs of torque and 272 lock-tite.


DJ
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post #3 of 4 (permalink) Old 08-05-2015, 04:21 AM
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C6 - Noise

My 2008 base model makes grinding noises when i turn left or right sharp when cold sounds like coming from the rear . Noise seems to lighten after driving for awhile . Does my car have C-V Joints ? Possible rear end going bad ? Any recall for rear suspensions that anyone knows about ? Should i take it to dealership for checking and can they be trusted ? Any advice please .
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post #4 of 4 (permalink) Old 11-04-2015, 12:38 PM
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Quote:
Originally Posted by Djbrun View Post
Sounds like you need to replace your diff fluid. The new LS diff fluid does not require additional friction modifier. Takes around two quarts, but purchase three so you have enough to get two in there.

Then go do around ten figure eights to get the fluid in the clutch packs.

While you are at it, check your axle nuts to make sure they are tight.

If not you can torque them to 130 ft-lbs for now, but best to get new style axle nuts which require 160 ft-lbs of torque and 272 lock-tite.


DJ
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is it real so i can apply it
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