can anyone confirm thread pitch on 18, MT?

looking to replace my shifter knob on my 18 MT. is is 8x1.25, or 12x1.25?
TIA
dewey7015

 

It is 12x1.25

 

thank you sir! how is the grommet mod holding up? does it move at all?

 

Actually that was 2 mods ago, lol. I didn’t like feeling the jam nut so I cut off the lock from the end of the factory knob and epoxied it to the nut and attached it that way, but then the boot was stretched too much and the knob kept loosening, so I got a much smaller nut, a smaller grommet, and I salvaged a small silicone tube from work, and just attached it that way a half hour ago. We’ll see how it holds up. Stole some of my wife’s hair ties for bling...

 

great thinking! nice job!