I have the OBX Tomcat A/T with OD button shifter which is a "knockoff" of the Razo shifter of the same style.

I read the posts about rattling of Razo shifters before I installed mine...and since mine is a copy-cat design I took the necessary precautions outlined by others and it paid off! No rattles of any kind! I simply took the shifter knob apart and put shrink wrap tubing on the internal coil spring and coated it afterwards with a light coating of silicon grease. Also coated the OD button with a light coating of silicon grease.