It is pretty straight forward. After you get the large roll oin out to get the Coupler off the stearing box, ther is a little pin the holds the coupler on the shoes.Get that one out and it cames apart. clean everythong with mineral spirits.
If the large pin is ok you can skip pressing the old one out and the new one in.
Put the shoes and clip on and grease then the rubberr seal and metal cap.
If you can not keep the car on a member here sells a spring clip that holds it on.