In/out play in coupler

My shaft did not move within my column as the snap rings and upper bearing would retain them. I could spin the wheel when it is disconnected and the bearing would support the entire shaft. It was the column strap that was loose. The dust seal doesn't retain the shoes in the coupler but prevents them from falling out as its just a crimp on rubber boot. The pin would retain the shoes but what holds the pin in? The big heavy wire bale is a better option. The Borgson type joint must rely on the splines to give it a little play for body flex