I don't have a 6.9 for sale, but I did read an article in one of the 4x4 mags about a Cummins install in an '88 or '89 F250. I'll try to find it. For some reason, they said the conversion was easier. Also, as a former 6.9 owner and current Cummins owner, I would definitely look at the Cummins.

Rob