Automatic Titanium and Aluminum Ball Type Shift Knobs and Boot.

killjulez

I swear the knob will go on and work without removing the white plastic piece. Did you try moving the aluminum inner collar (the piece with the set screws) further up? As far up as it would go? I'm just not sure if you tried to move the collar as high up as it would go (and still function) so that the white plastic stick can fully retract.

If you can remove the white piece, the knob can sit lower. That is the only piece that prevents the knob from sitting lower. If the white piece cannot be removed, then small modifications to the knobs design will have to be done to make it work.