75 250 4door
There is a small recess (can't tell if it's a screw hole or not) on the back of the steering wheel grip at the 6'oclock position.
I had the same problem and I plugged the hole with epoxy. That was a few years back. Right now, grabbing the wheel makes me understand what the Brer Rabbit experienced when it wrestled the ********. The whole surface has turned into something just like Permatex. The wheel originally came out of late 70's Camaro.