LOL.....I would have never noticed that, if someone hadn't pointed it out.....guess I better do a better job of proof reading next time.... Its my first TRANS-AXEL 
Drive train noises
Thread Starter
Pro
Joined: Feb 2003
Posts: 715
Likes: 21
From: Ontario California
Drive train noises
We are still getting use to our new addition to the Corvette fleet in the household...the C6 convertible, 6-speed in Velocity Yellow. Although the car drives great, I'm a little concerned about what seems to be some "slop" in the drive train. When starting off and engaging the clutch, the drive train seems a little loose, and you hear a faint "clunk" from the rear end. Also when disengaging the clutch, you hear the same sound. The car has 38,000 miles on it. This is my first Corvette with a transsexual, so wasn't sure this is a normal sound, or if there may be be problems somewhere. 
Comments?
Comments?
Instructor
Joined: Feb 2009
Posts: 163
Likes: 0
From: Yorba Linda Ca
Loose Nuts
It's the main axle nuts working themselves loose. The TSB includes putting a little Loctite on the threads and torquing them up with about 100 ft-lbs. There are other threads with more accurate torque info. You need a large 34mm (?) socket. I'm not sure why, but I ended up having the dealer do it rather than buying that size socket. It made a big difference even on an automatic.
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
It's the main axle nuts working themselves loose. The TSB includes putting a little Loctite on the threads and torquing them up with about 100 ft-lbs. There are other threads with more accurate torque info. You need a large 34mm (?) socket. I'm not sure why, but I ended up having the dealer do it rather than buying that size socket. It made a big difference even on an automatic.
What the OP is describing sounds like the standard driveline rattle that occurs when you disengage the clutch under slight load at idle (for example when rolling around a parking garage at 5mph).
Thread Starter
Pro
Joined: Feb 2003
Posts: 715
Likes: 21
From: Ontario California
I disagree. The only sound that tightening axle nuts will (temporarily) prevent is a click during torque reversals.
What the OP is describing sounds like the standard driveling rattle that occurs when you disengage the clutch under slight load at idle (for example when rolling around a parking garage at 5mph).
What the OP is describing sounds like the standard driveling rattle that occurs when you disengage the clutch under slight load at idle (for example when rolling around a parking garage at 5mph).
You are right about that sound I hear. I researched a lot of threads on Axle nuts, and none of the symptoms sounded like what I have been hearing. Just seems like there is a lot of back and forth slop in the drive train. If this is normal thing, then I won't worry about it. The car is still covered by the GM power train warranty, so I would like to find any problems before that runs out.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski