[Capt Cruiser]

They both need to be pushed back 3/16"

A chamfer on the end of the shaft to the bottom of the splines will help during installing.

.

 

[Capt Cruiser]

No they don't need to be rounded, but make sure your deburr them with a file after you add the chamfer.

 

[Capt Cruiser]

Okay, so I learned a new word, thank you!

So who adds the chamfered edge? The machine shop when they trim off the edge? Or me after I get it back with a file or something?

This wasn't mentioned in the DJ Mod instructions.

Have the machine shop do it when they cut the end back.