I tried to do a search on here for this but the search option on this site isnt working for me at this point in time for some reason. Anyways, on the highway at almost exactly 90 my car gets some driveshaft vibration and I was wondering if there was a recall and if I took it to a GM dealer if they'd honor the recall and put a better one in for now. I believed this was asked before awhile ago but I don't remember what people told the person who asked. It's a 1996 Z28 M6 with 3.42 gears. Everything in the drivetrain is stock except the transmission mount but it did this before I put it in I believe. Thanks

Myles

 

There was a TSB (technical service bulletin), not a recall, on the drviveshaft. They might have done something for free when the car was still in warranty, but that is not likely now. There are not going to be many LT1 cars that are still in warranty.
You can pick up a used replacement driveshaft at a reasonable price.