I don't know where a spacer would go? The shifter bolts to a bracket that is bolted to tranny. The shifter ataches to the bracket with a fixed bolt and one on a rectangular nut ment to slide back and forth as an adjustment for the shifter position in the car. Last year when I had to put it back in I used the pin method, a 1/4" drill bit works great but I had to adjust it many times after that to get it to work. This time I marked the sliding bolt when I took it out and put it back the same. 1-2-4and reverse worked and not 3. After I adjusted the linkage for 3 it works great 1-2-3-4 but not good going into reverse. I think I am close to where I want it to be so I don't want to start over with the pin alignment It did shift pretty good yesterday when I took it for a test drive I think what I need is to fine tune it. Why when I adjusted the rod for third gear did it affect reverse? Is that hapenning inside the tranny because I moved the third gear lever a little? I know it just needs to be adjusted but I don't know what I am adjusting when I move the lingage? I moved the linkage nut 2 turns. Any ideas? Thanks, Pete