Shift knob adapter with boot ring

thingiverse

This adapter secures an aftermarket shift knob to the stock shifter. The adapters provided with the shift knob lacked a ring to support the shift boot, prompting me to create one with a built-in ring that keeps the leather shift boot in place. It's engineered to be compatible with Mishimoto shift knobs, but it may work with other brands as well. Three sizes are included: M8 X 1.25, M10 X 1.5, and M12 X 1.25, which represent the inside diameters required to fit onto the shifter.