Hey all, i have over the last month purchased an 83 E-350 (old town school bus) and a 1990 E-350 school bus as well. Anyway i have been looking for a dana 60/70 full float with 4.10 gears and i can't tell what these vans have. I do know that the axle code is a 33 but i can find out what it is after looking through several different code books ( shop manual, chiltons and an 83 owerns manual)and such. So anyone in here know what the axle code 33 is?