Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
I have no idea what the pitch is but the nut uses a wrench larger than 1 1/4" but smaller than 1 5/16" go figure. I had a buddy machine the nut for me so that a 1 1/4" wrench fits perfect.
It's 7/8"-14 tpi. It's not a standard nut though, it's thinner. I tried quite a few fastener places without any luck and finally just went to GM and bought one there. $10 for a single nut...but at least you only need one.