2wd chevy trucks are 5x5 or a 5 inch bolt pattern, if they are cragar ss wheels or keystone klassics they have an oblong hole and fit various bolt patterns. The gm rear wheel drive car pattern is 5 on 4-3/4 or 4-3/4 inch bolt pattern. The ss cragars we have on dad's 84 fit from 5on4-1/2 to 5on5 bolt patterns.