Another wheel offset question

yes my truck is bodydropped. you would be fine with 40mm offset and an 8.5 inch wide wheel if you were just laying frame but if you lay body then then wheel will end up pushing out on the beside. right below the top bodyline

i got some 17 by 8 rims with a offset of 0 i have the 4 by 4 sheet metal on my 1990 b2600