I got a nice black two spoke wheel off of a 79 and it fits right on the shaft of my 69 F250 column. I was getting real tired of the old wheel dragging on my legs and belly and catching in my shirts, so the smaller 15 inch wheel is great. Got a question about the wires behind the horn pad...there are two black wires with spade terminals on the back of the horn pad, and two spade terminals on the wheel hub. I plugged the right wire to the right terminal and left wire to left terminal and screwed the horn pad down, but have no horn. The little horn plug/button in the turn signal housing is there and is making contact with the back of the steering wheel, and the horn will blast if I stick a small screw driver in the gap and ground the horn plug/button, but the horn won't sound when I press the buttons on either end of the horn pad. Where is the pad supposed to contact the metal bar/frame in the wheel? Out at the ends?
Or is the 79 horn pad and wiring different? I'll try to post up some pix tomorrow...we've got a browner here in W. Tejas today and it's too nasty/gritty to go outside.

 

lets hope the moderators dont get mad at me on this one...
How to Install a Tilt Steering Column - FORDification.com
basically one wire needs to be a ground.

 

Well rather than try to redesign the 79 steering wheel or rewire the 69's column, I just bolted the 79 wheel in place, slapped on a WallyWorld black Bell wheel cover and used some peel and stick velcro strapping to cover the gap between the 69's column hub and the back of the 79 wheel. Looks nice...too bad I can't post pix...guess I'm being limited by the mods for some reason. I'll put my pix up in a similar thread in that other forum.
Gotta say I love the smaller 15-inch Ford steering wheel. I can get in and out of the truck with ease and don't have the wheel rubbing my shirt or pants legs when I drive. No real difference in how the truck steers or handles either...its like I'm 16 and slim 'n trim again, way back when the stock wheel didn't drag on my 6'3" 250 pound bod. Oh yeah, I broke down and installed dash horn button on the trim piece that holds the column to the dash...beep, beep! outta my way chump!