New to site!!

[85mudder]

Hey guys as you can tell I am new to the site, And it is one of the best sites on the web!!! I have a couple of questions for stuff i have ran into with my 85 mud truck project, first one is i have the eight bolt axles, and i have 15 inch wheels with big tires on them, when i bolt them on the back they work fine but when i bolt them on the front they hit the calipers. So my question for that is there a way to grind off just a little bit to make them fit, they bolt on but they just barely catch. My next question is does anyone have any good pictures of a heavy duty front bumpers that they have built or used that i could look at to get an idea for my 85 k20?? thanks Brad!!