ok on the svxs with awd is it possible not to screw with the awd by using 17in wheels but 7.5in in the front wide and 8in wide in the rear or would they need to match???second thing is ok i know offset has to be such and such #s but what is offset how can i measure this?? please forgive me for being not so smart here (used the search button and got soo many posts on offset but i still didnt find my q) any help would be nice

thanks

Jim