Any update on this? What bolt was stripped?
Had this happen in the middle of a road trip in Montana from Florida. Car did eventually start and run fine for several days, then happened again once, just once and run perfectly for the remainder of the trip.
Will be having Chevy check codes, but it was disturbing to have it clunk out like it did. Very glad to not have to tow it 50+miles to the nearest town. Attributed to gravel and dust from many miles on unpaved roads. I have pressure washed the underside of the car and rear bumper thinking dust and debris caused the initial issue. Not sure though.
Mike