not the fault of front mounts wilbur, they work fine, more likely the operator than anything, and after a few dozen times of the chattering starts, the clutch disc can get 'marked' so it's more likely to happen more often - but as above, it could be an uneven pressure plate or flywheel, or fine checks/ cracks in the flywheel that have gummed up
Bill
Well maybe it was installed poorly but I it had it replaced because it chattered and after they were done it still chattered, not quite as bad or as often but it does it. It only has like 8 to 10 hours of drive time on it since that all was replaced. Maybe 250 miles total.
This is my 13th vehicle with a clutch and only had this issue with one other vehicle and that was because the mechanic that changed the clutch after it was warn out did not replace the leaky rear seal and it leaked oil that within a couple days got onto the clutch. He had to replace it all again on his dime.
I do not think that this current case is a result of my driving style. I also have a 1997 chevy Z28 with 145,000 miles on it and it is still on the original clutch and I raced it in SCCA autocross for 4 seasons. I think my clutch technique is OK. I have been driving sticks for 39 years.
When it chatters the whole truck cab jumps around pretty violently. I should propably recheck all the mounts to make sure one is not broken or loose. The front two have some new rubber on them, maybe they have compressed or the mount bolt may have broken. Or the rear transmition mount may be loose or disconnected if the mechanic did not tighten it back up after doing the job. I need to check that.
