I can take measurements if that would help?

Do they write the part number somewhere on it? They must huh?

 

are you using the K&N that RB sells for the stock replacement?

actually, now that i think about it, even if you are, it could be a help. yes, please, if you can measure what you have and post it, it would be great. thanks.

 

This Is With A K&n Filter I Am Not Sure Wich One But I Had To Push Down Firmly To Get The Wing Nut On. This Is The Stud Supplied From R.b.