Hey guys; I have an unusual question and I am afraid I will stump all of you with this one, but please try anyway. I have found a 56 370 series 2 ton flatbed w/ factory power steering; I want to know if the 370 series trucks used a different or larger power steering sector, or if the sector would have a larger diameter pitman arm shaft or something that would make it any different than the power steering sector for a 100 series truck....so if its the same, or if the shaft diameter will accept a 100 series pitman arm, then I can install it on my 56 GMC 100 series truck - if not, I need to just buy it to go on my 56 370 series Firetruck. HELP?
