Axle Nuts
Thread Starter
Racer
Joined: Aug 2007
Posts: 275
Likes: 0
From: Southern CA
Axle Nuts
Finally got around to checking back axel nuts & both were loose, really loose, about hand tightened. 33mm Axle socket by Powerbuilt from Kragen Auto, nice heavy duty socket. $15.99.
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Race Director
Joined: Aug 2000
Posts: 11,470
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Racer
Joined: Jul 2002
Posts: 474
Likes: 1
From: Wake Forest NC
Rear end chatter when cold: http://forums.corvetteforum.com/show....php?t=1249546
3rd Gear
Joined: Aug 2007
Posts: 3
Likes: 0
Easy to Fix, Hard for Dealership to Find
I've had my '05 Z51 back for about everything you can find on this forum. Rear halfshaft failure, rear CV boot failure, grinding from rear (fixed with differential flush refill--finally after two attempts and failing to add two cans of additive), deck lid release button sticking, top snaps and crackles (de-lamination), Active Handling light intermittently on and off (wiring), Air Bag light failure (frayed wire under seat), clutch feel and broken return spring (they never, never at two dealerships checked the master cylinder fluid levels), cracked and replaced center console, and FINALLY popping and clunking on shifts, acceleration, and decelleration. Guess what, it was a loose axle nut? I fixed it and torqued to 140 ft lbs after finding stuff here. And now everything is smooth and my shifts are not an embarrassment. This forum has taught me two very imporatant things: (1) Do your own maintenance and (2) pretty much anything you need to know about how to maintain or fix your 'Vette is right here.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
An earlier post I made has the link to the TSB...
The torque spec has been revised to 160 Ft-lbs.
Throw away the loose nuts...
You need new ones because of tapered threads. Use blue locktite...
The torque spec has been revised to 160 Ft-lbs.
Throw away the loose nuts...
You need new ones because of tapered threads. Use blue locktite...
Thread Starter
Racer
Joined: Aug 2007
Posts: 275
Likes: 0
From: Southern CA
Check out this post for the complete procedure:
http://forums.corvetteforum.com/show....php?t=1805973
http://forums.corvetteforum.com/show....php?t=1805973
Thread Starter
Racer
Joined: Aug 2007
Posts: 275
Likes: 0
From: Southern CA
Looks like the latest is 160 lb ft/
Technical Service Bulletin
Subject: Tapping or Scraping Noise From Rear Wheel Area (Replace Wheel Drive Shaft Nut) #07-04-95-001 - (09/26/2007)
Models: 2005-2008 Chevrolet Corvette
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.
Technical Service Bulletin
Subject: Tapping or Scraping Noise From Rear Wheel Area (Replace Wheel Drive Shaft Nut) #07-04-95-001 - (09/26/2007)
Models: 2005-2008 Chevrolet Corvette
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.