what size 20's will tuck

i got a 94 jimmy that is laid out and the 20's that i have for it wont fit, the tucked on my 95 blazer but on the 94, with the different body style, it wont tuck, i guess the BS needs to be more, anyways, i was wondering if anyone might know what the BS needs to be on like a 8.5" wheel in order for it to tuck and not rub on the body.

well do what i did, just re-tub all your wheel well's to lay frame lol, it worked for me,

real clean too

What are they rubbing on? Are they hitting the fenders or the firewall?

i was messing with them the other day, ant its gonna be tight, it was hitting the part that is right above the fender lip, i guess its the part of the fender lip that is bent and then curved in, it was about 1/4" away from laying, and with a smaller tire, like a 245/35 it will be 1/4" shorter, so i guess im just gonna start trimming everything i can and see how close i can get, i guess its not as bad as i heard it was.

oh and this is on the rear also.