Hello, I recently bought a partially restored '67. It has a very sloppy 3-speed shifter, though it was obviously rebuilt recently as it is very clean. I removed the shifter mechanism and found the two shift levers are really flopping around on the shaft. I disassembled and it appears something is missing. I believe there is supposed to be a spacer on the shaft, to take the place of the 4-speed's reverse lever. Anyone familiar with this, or have an exploded view of a 3-speed shifter? I could guess, but I'd rather get it right from the start. Thank you!