I have a MGW sifter,i have both shifter shaft sizes 3/8x16 & 12mmx1.25.What i would like is to put on a white ball on it (5 speed shift pattern) with the button for line locks.No one seems to make such a thing to thread onto what i have so it seems.Does anyone make bushings or adaptors for this situation.Or does anyone have a different approach??Tell me what you have.