Fairly simple....You pull the coupler away from the column. The shoes are held in with a steel pin. The pin can be pressed out or just reused if it is okay.
Do you mean the OEM style coupler Bergman offers, or the universal joint type?Bergman steering coupler
I'm a little fuzzy on it but I think that there is a tiny roll pin that has to be punched out to get the coupler off of the shaft.
The neoprene boot that I have came from "Steer and Gear", not BAC.The rubber boot is out of stock at Bergman. Is there another source for it?