205 transfer case guru's needed....

How’s the double cardan joint at transfer case for the front driveshaft? There’s a ball and spring in there that tensions the joint and the “pin” the ball and spring goes on rust and wears. If when it’s disconnected it just flops around and doesn’t kind of spring one way or other good chance that’s where it’s at. Could pull the shaft and drive it to see. That’s about all I can help with. Seems like years ago someone made a kit to eliminate that joint but that’s going back a long ways for me.