The shifter extension is a 3" piece of 1/2" rod. You'll need to disassemble the shifter, cut it, and weld that extension in there. Kindofa PITA but shits got to be done unless you buy another shifter knob that's longer, which is a good way to save some time...check ebay for some leather shifters and find something like a Titan knob...cut the old shit off and expoxy new one in place