What bolt size for starter?


Founding Member
May 21, 2002
What size bolt is used on the starter for my 5.0?? My car wont crank over and everything up top looks correct so I jacked it up and sure enough, it is missing a bolt. I need to replace it and I don't have a bolt that fits. Thanks!
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It is either a 5/16 or 3/8 in coarse thread bolt. About 1 1/2 in long.

Pull the bottom one and check it. The holes are threaded all the way through, I think. If you buy one, get a grade 8. These are near impossible to remove with a rounded head or other problem. Been there, done that.

Lack of the bolt should not cause the starter to not function, but might break the mounting ears off.