[Kevin Sevcik]

We had this issue as well, but I don't think it was the CIM's fault. I wish I had a nano in front of me cause then I could definitively tell you exactly what to do. I do know that it was caused by lack of spacing between the large output gear and the large cluster gear. Ithink we caused this by putting the small flanged FR-6-zz-hex bearing in backwards. This is the hex hole bearing on the cluster gear shaft. The flange goes on the inside of the gearbox. Then the two button screws tighten down to take up slack on the inside and leave the hex bearing flush with the exterior.

If you put this in backwards with the flange on the outside, things don't stackup properly on the shaft and you get excessive play. If you put it together right and your cluster gears still have play, then you could add a washer or two between the small cluster gear and the hex bearing to push things farther from the output gear.