? about 10 bolt's
But to answer your question, on my old truck (2002 F150), one of the ring bolts came loose and bounced all around the inside and smashed up the cover really good. I drove it around for another day like that, fluid all over the place..hah All I did was put a new bolt in and drove the truck another 4 years with no problems.
So, my advice is just replace the bolt, put some loctite on it, and ride.





