Here is a question for the pro's: I pre-zoom my old friend Bill will be all over this..? Dave's 2 cent's will not be ignored either...? I know the front roof is the same on the 57 & 58 and the 59 is different (size & garnish molding's). But the roof lock screw and transmission assembly and C & D limit switch's all interchangeable. I know the wiring on the limit switch's on the 57 is not color coded & the 58 is but are there any other thing's I should be concerned about...? I'm going to sell some part & assemble's & don't want to mislead anyone. Will this assembly fit 57,58 & 59...? Thank's Gregg