dssur
+1y
bolt pattern is 6 on 5.5.
you will need a different backspace/offset depending on what width wheel you choose so its not a matter of just saying "5 inches of backspace" or "+40"
For a 7 inch wide wheel you will need at least +32, a 7.5 at least +40 an 8 at least +47 an 8.5 at least +54 etc etc etc. In backspace thats 5.25 for a 7, 5.75 for a 7.5, 6.25 for an 8, 6.75 for an 8.5 etc etc.
The front tucks better than the back because of camber, so try wheels you THINK will fit on the back.