Anyone know the size and threads of the top starter bolt?
My truck misplaced it.

 

Its 5/8th nut and coarse thread.

 

Do a search for "master list" and there's a thread that gives you the size of ALMOST every bolt.

 

Actually figured out that the stud unscrews and took it to the auto-parts store. The bolt matched up to a 7/16 by 1" coarse thread and the nut for the bottom was a 7/16 fine thread.

Not sure what starter you got that it needs a 5/8 bolt.

 

Depends on if your are talking about the bolt (or hole...) diameter, or the tool needed to take it off.