Help, What size wheel spacers?

[Two7.3s]

I picked up some 17" OEM wheels and went to put them on my '01 F350 and they are hitting in the front. Will someone tell me what size wheel spacer I will need? Should I get some for the rear or will just the front work? Are there differences in the brands or will any brand work? Thank you!

[GregsSD]

The difference in the wheels is about 1-1/2", but get some 2" spacers so that they will clear the stock lugs, otherwise you will have to cut your stock lugs a little bit so they don't stick out past the spacers.