I need a clutch nut for a gs .21 r or anything you guys think will fit, ive bought a traxxas one and an associated and the thread was way to small. IM thinking the ofna clutch nut for the GTP series might work? please help. thanks.

Why don't you get the proper nut for what ever car you're putting it in? Then it will fit the flywheel set up correctly.
All the ones for .21 and over have the same size threads, but they are all slightly different.

they disc. the original part. why else would i ask?

Wow, I appologize for trying to help
My mind reading skills are lacking these days

Good luck

I didn't mean to sound like a smart ass, apologies. Lhs had one (from the mp-5) old!