I put one in mine for the heck of it. Mustangs of that age tend to have worn and loose steering boxes so it's not a bad idea to swap for a rebuilt one anyway. The wiring from the column to the car is a tad different but no big deal. In my case the brake pedal didn't touch the column like other people have had issues with. I "massaged" the sheetmetal on the side of the column a bit with a hammer to ensure the pedal wouldn't scrape as the pedals do flex a bit in use. Other folks have had to actually change the brake pedal for a '68 one that has a more bowed shape. These old cars aren't as consistent as newer ones so your luck can vary. I can't say about steering wheels as I went with an aftermarket one.
