RZR XP 1000 Clutch Castle Nut May 31, 2015 The castle nut on my primary came loose and it wouldn’t shift out past 50 MPH. I’m assuming there is a special socket to reinstall this nut? Is this socket required or can I use a punch? Also, does anyone know what to torque it at? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related