will say, that 7.3 is the holy grail of ford diesels to some guys, being a 7.3 psd with the zf5 manual, cclb, but having driven it, and others, I don't really get the attraction, its the one international that actually was reliable but you pay for it by accepting a 185 hp 7.3l turbo diesel, the fastest its probably ever merged with traffic was on the back of a trailer today