Thank you all for the info.
P.J.---I have 7.00x15 split rims on my 3600. Because of that I hope someone can send me a pic of a mount on a 3100 on up. BTW, I live just NE of Higley and Southern.
I think one morning next week I'll pay a visit to the pull-a-part to see if any of the trucks still have their mount. I just hope I don't spend as much time as last week looking for a jack!!