I noticed that on page 10 of the manual there is no call out for a set screw to go in the adjacent hole to the ball stud on the rear hub carriers, unlike the front which does call for a setscrews to support the hole. I hade the ball stud crush the adjacent hole rear carriers on my 22 4 a few times from some side hits , so I would think you would definitely want it on the back. Not sure if there was a reason for not putting one in the rear hubs ,but I put them in mine. Maybe some one from Tekno can comment. Thanks
Did not get down to the track today..work screwd up all my plans..but tomorrow its on