I'm going to replace the shift knob when I install my short shift kit and want to know if there were certain years/trim levels that came with seperate boots and knobs.If so, what is the boot attached to. Mine has the one piece combo. I'm sure I can get a boot through wheelskins or someplace but not sure if I'm going to need a collar on the lever for the boot to attach to or what. Not sure what I'm getting for a knobyet, I prefer just a plain round billet knob.