My 37 drives fine at 65 or faster. It has a 250 with a 3.42 rear axle. I converted to disc on the straight axle and late model Firebird rear axle. I just installed new front springs which help a lot. The streering is all rebuilt and king pins are original. I run 205/75R15 radials on the front. Check your alignment, mine was all over till I reset the toe in. Joe
