Which disc brake conversions have others used

I have talked to Cass at Dr Diff about this. I bought one of his disc brake conversions for my Charger, but that was already the big bolt pattern (BBP) 5x4.5.

I asked him about kits for my Barracuda, and told him I would need to hold off for a while do to cost of not only the conversion kit, but also buying different axles and brakes for the rear, as well as new wheels and tires. He told me that he could swap in small bolt pattern rotors for the front so I wouldn't have to do everything at once, then when I was ready to convert to big bolt pattern, I could just swap out the front rotors.

It's an option for you to be able to convert and still keep your small bolt pattern wheels. Keep in mind though that the conversion pushes your wheels out about 3/4". With my current backspacing on my wheels, it looked to me like that may put my tires pretty close to the lip of the wheel openings, so I haven't done it yet. If I need to buy new wheels to correct the backspacing, I might as well do the whole BBP conversion.