Corvair Shift Knob

This is a standard shift knob, specs are identical to an original knob as you can see in pics. I set a small 1mm sleeve exactly where the original metal threaded insert would be and it self taps right onto the shifter threads. After threading it on, I have taken it off multiple times and the tight fit has not changed. Perfect replacement if you want the original knob feel, but can't find a inexpensive original replacement. Print with a raft to insure it stays on bed, otherwise no supports needed.