Thank you MNSmith. Bartamos I understand what you are saying. i have a bolt gauge but the reason I as asking as to part numbers is so that I can find replacement bolts for certain parts. I am trying to keep this truck as original as possible as I inherited it from my grandpa before he passed away. He was the second owner of it before I got it. This is going to be a tribute to him once it is done. I have been using the master parts catalog that is downloaded to the old car manual project website along with the factory assemble manual and the shop manual. I know I'm being a little anal about these bolts but to me it means a lot to know that I can put the truck back together like it came from the factory.