Wondering if there is a "forumla" for figuring out what offset to go with. Found some wheels, 20x8.5 with an off set of -1mm. Trying to find out if these would rub on the leaf springs and how far they would stick out.

 

I had just asked this question yesterday...

heres the link to the forum..

https://www.ford-trucks.com/forums/729572-offset.html

hope it helps