Originally Posted by Holmenkollen
Do you need the one-way unit from TA05 to use the bigger pulleys on 415 or can you put the pulley right on 415 one-way unit?
No you do not need to have the 1-way. The hole pattern diameter is a touch larger on the 05 pulley. To fix this take a body reamer and enlarge the holes to allow room for the screw to fit. If you keep steady pressure you should still retain the center of the original bore and allow the pulley to remain centered.