Wheels for a duster offset and backspace

Swapping to an 8.25" won't move the wheels. The BBP 7.25 and 8.25" rear axles are the same width. Adding the disks in the back will widen the track width a little though, usually 3/16" to 1/4".

I have read these posts, even figured my offset for grins from the chart. But still cant see why a person would care about offset, if you got the backspaceing right and the wheels/tires fit !! Who gives a flip ?