Can anyone tell me how to remove the, extension?, on the gear lever? It seems to be there to hold up the boot. I have a Momo shift knob that I would like to install but can't get the knob low enough to use the set screws w/the screw on cover. The "extention" looks like it just screws on top of a shorter shift lever and has a holthrough the side, but does not seem to screw off. Help. I hope this is clear to someone Thanks to all! Eiching1