zms2004
+1y
with my 94 isuzu, when i built a stock floor frame, the 2x3 was still too tall to lay rocker. i also had a traditional body drop to get where i wanted, which was an inch from doored. you wont gain enough by using 2x3, plus adding that inside your stock frame rails. ive seen isuzu stock floored with 2x3 sideways, or 2x2 parallel rails.