Will try to get you some measurements tomorrow but if you have the filler panels that fit between the rear top of the running board and the bottom front of the bed that will place the running board to where the board to fender holes are aligned. The gap between board and cab is around 1 to 1.5". There is a rubber seal that goes in the gap. We have a 1950 Chevy "Unibody" mule that has the cab, front clip, and the bed welded to the back of the cab (with spacers) to give a one piece unit to lower down over a donor frame, be it S10 or other, and then after satisfied with the stance measurements are taken to build custom mounts.
























































































Evan