Tail_Gunner
CRJ & ERJ A&P Mech.
I used some 1 3/4" flat washers that I bent in the vise to a "L" shape and used them as wedges. I insert the washer shims on top and on the side of of the ball mount shank. I then slide the ball mount into the reciever and put the cross pin in. The lack of space between the receiver and ball mount keeps the washer/shims from coming out.