need help trying to figure out why a 1975 F-250 4x4 steering box seems impossible to find,i cant find oem or aftermarket,all the local parts houses and sos services told me good luck.I cant even find a salvage one,I really need to find one i got a awsome truck and a mile in a half of steering play,all the rebuild kits i found were only seal kits.I have done a lot of research and there is something special about a 75 model cause i can get a steering box from 73 to 74 and 76 to 79 but no 75.If there is a solution please let me know i really whant to go wheeling