Shifter Spinning Problem?

[JeepJ4000]

I've been talking to a guy with a T15 tranny for sale. He says the shifter spins
360 degrees. Does anyone know why this is happening and how to fix it? Thanks

[johnracer]

There's a pin that goes in the side of the shift tower and lugs into the ball at the end of the shift lever. The pin is either broken or missing or for some reason the ball isn't attached to the lever anymore......

Johnny