shift knob thread
 

does anyone know the thread side of the oem shift knobs?? should be the same for g2/g3

Should be M12x1.5.... yes, the same as your lug nuts.

Try threading a lug on there and see what happens ;)

i have an M12 thread tap too it came in my set that i got from princess auto.

M10X1.5 got it from tegatron's lever last night, thanks man!