I've been a long time Ford fan, but loved the cummins. I got a good deal on a 98 cummins regular cab, and I'm thinking about doin the swap into a 72-79 F-250. I haven't contacted fordcummins.com yet, but I will soon. ANyone else no of any companies that would help me out?? I'm not sure what I am getting myself into yet, and would like to know what it involves. Thanks!