Originally Posted by
Schwinnsta
Installed 12-14-17 Bikegang kit with end lug and Sunrace 3-speed friction shifter. Everything works fine and it shifts great but ran into this problem which seems strange. If I tighten the derailleur 15mm nut that holds the derailleur on more than hand tight, the underneath side of the derailleur hits the driver that holds the sprockets. So the driver rubs against the derailleur. For now I have it on hand tight but with two cone nuts, one acting as a jam nut so it can't come off. Since I did not alter the driver or the derailleur, I can't understand why this should be.
This sounds really weird. The position of the driver on the wheel and the derailleur are identical wether you use two sprockets (as original) or three sprockets w/o a shim. Thus the very same issue (derailleur hitting the driver) should have hit you in the original configuration that came from the factory. And as this is not the case possibly something went wrong during your latest re-assembly.