Driveline slop in Corvette C6

[ian_uk1975]

I've recently acquired a Corvette C6 (Z51/MZ6) and the driveline sloppiness is really starting to irritate me. I'm a seasoned member of CorvetteForum.com and, from searching the forums, it seems to be a characteristic of these cars. However, having not driven any other examples, I'm not sure if mine is any worse than the average.

The main symptoms are a loud clunking from the diff when coming on and off the throttle at low speeds in 1st/2nd gear. It's also very difficult to drive smoothly when crawling along in 1st gear.

What causes it and what can be done about it? I'm not sure if the clunking is down to the diff being an LSD? To clarify, the clunking sounds I'm on about all occur when driving in a straight line, not when turning. A slight clunk can also be heard from the diff if I change into 1st, then change into neutral and sharply let the clutch out with the car stationary... sounds like lash being taken-up in the diff gearset(?) These clunking noises are easily audible from outside the car and are somewhat embarrassing, apart from anything else. I find myself trying to 'drive around' them by slipping the clutch more than usual and trying to be ultra-smooth with the throttle when in traffic.

Cheers,
Ian.

Edited by ian_uk1975 on Tuesday 26th February 22:05

Edited by ian_uk1975 on Tuesday 26th February 22:07

[stevieturbo]

Perhaps an issue with the propshaft ?? ( inside the torque tube )

[toohuge]

I have heard that there is a lot of drive shunt in the C6, so this is probably a common trait in this model. It would be hard to put my finger on what it actually was. Try putting a shout out to any other C6 owners and go for a ride in one and see how yours compares.

[eldudereno]

If the guys over at CorvetteForum.com don't know no one else will.