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noblejr · 12-09-2003, 04:09 PM

The Car: 1977 Chevrolet Corvette L82, automatic, posi rear end

The Problem:

I originally chalked this problem up to bad brakes, with the brake pad shifting around inside the caliper housing. Now that I have replaced all my leaky, worn out calipers and installed new brake pads, I still notice a problem.

What I originally though was happening is that one of the brake pads was gripping the disk, moving up out of place a little, then popping back down and releasing the disk. I would feel this happen a few times when I drove forward after backing up. Since I now have all new calipers and pads, I doubt this is what is really happening. What I feel when I'm driving very slow is a resistance and then feel a "klunk" and a release of the resistance. It will do this every few seconds until I speed up. I don't always notice this, but just occasionally when I'm driving forward rather slow.

Next week I'm going to check all my U joints (there's like 6 or 7 of them) and maybe jack up the rear and let the car run slowly in drive.

Anybody have experience with this problem or know how I should go about troubleshooting it?

12-09-2003, 04:09 PM	#1 (permalink)
noblejr Crazy Location: Atlanta	Possible drivetrain problem The Car: 1977 Chevrolet Corvette L82, automatic, posi rear end The Problem: I originally chalked this problem up to bad brakes, with the brake pad shifting around inside the caliper housing. Now that I have replaced all my leaky, worn out calipers and installed new brake pads, I still notice a problem. What I originally though was happening is that one of the brake pads was gripping the disk, moving up out of place a little, then popping back down and releasing the disk. I would feel this happen a few times when I drove forward after backing up. Since I now have all new calipers and pads, I doubt this is what is really happening. What I feel when I'm driving very slow is a resistance and then feel a "klunk" and a release of the resistance. It will do this every few seconds until I speed up. I don't always notice this, but just occasionally when I'm driving forward rather slow. Next week I'm going to check all my U joints (there's like 6 or 7 of them) and maybe jack up the rear and let the car run slowly in drive. Anybody have experience with this problem or know how I should go about troubleshooting it?