Can't seem to find the code list for my truck. HB 55, Type GVM X259, Body FKM, Trans E, Axle 39, Tape 2, Springs HA

1990 F250/7.5, Long Bed, 2WD, Super Cab XLT

Is there a web site? I saw this somewhere before but can't seem to find it now.

Has overdrive button so does that make it a five speed? What rear end ratio?

thanks, b.