I rebuilt my rochester model B in the spring, was a piece of cake. Took a couple of pics as I took it apart for reference, which helped on the reassembly. Pay careful attention to the casting number on the base of the carbs, as there were differences in them. I had a 1961 carb on the 63, and there was a difference in the kit. I have the correct 1963 carb on there now, and retained the earlier carb for a back up. I have also seen variations in the size of the main throttle valve, I beleive that some were slightly larger tha others, but I do not know specifics. I would suggest that you run the numbers on the base of the lower portion of the carb and order the corresponding kit instead of just ordering the kit for the year truck you own.
