I need some help with a problem I'm encountering which my local dealer, or GM, has not been able to solve.

Here's the situation. The positraction clutches seem to be seizing when the steering is close to full lock, either direction, and whether backing up or going foward. This generally occurs when the car is started first thing in the morning and the weather is cold. It also occurs even if the car has been driven that day, but when it has been sitting, during cold weather, long enough to cool down.

Following a GM service bulleting, the dealer has drained the rear end and replaced the oil and anti-seize compound twice, with driving 1000 miles between each change, per the service bulletin. When this didn't solve the problem, a new clutch/disk pack was installed. Now that the weather is cooling off, and with only 2000 miles since the clutch/disk pack was replaced, I am still getting the positraction seizing problem.

Any advise would be appreciated. The dealer, and GM, have pretty much thrown their hands up and say they've done everthing the can per the service bulletin.

Thanks,
Dale Yellin