Yep 4 1/2 backspacing,but be aware measure your Hub sizes and tell whoevers making your wheels as you will probably have to enlarge the hole in the middle of the wheels to fit them over the middle of the Hub..i found out the hard way and had to mill them out myself..
235/60/15s front,should have gone for 245s but ill do that next time,theres enough room.
255/60/15s Rear,they look just wide enough with just enough bulge and with a fair bit of room to the lip.All standard arches/springs..It is a T/A and as such is a bit of a monster truck at the rear so i lowered it 3 inches
Trust me i really wanted Blue streaks on this car as to me there is no tire on earth today that looks better..i was going to go the whole hog and flare the quarter panels just like posey's then 20 seconds later i came to my senses and went this way instead..
the only Goodyear stencils i could find were these ones which are billboard size.not blue streak size which i would have gone for.As soon as i sprayed them i thought they looked an inch wider to me somehow.it really brings out the curve of the sidewall