Yes they are expensive, but so are the 7.3, don't get me wrong I love the 7.3 first generation PSD. The older 7.3 had injector O-ring problems, and the injectors seem to start going out at around 150,000 they are or were 300-350 a piece. The cam position sensors were trouble also, 180.00 from ford, 80 from International. In fact I just got a recall from ford the other day on that after 10 years of owning it. Torque converter problems wouldn't handle the power, dual mass flywheels coming apart. Fuel filters from Ford are 30.00, that need replaced at 15,000. about 55.00 in oil changes now, thats doing it myself. Than the turbo's, though mine is still going strong at 225,000. Exhaust back pressure sensor manifold tubes plugging up. Wow, now that I really thought about all I've been through makes me wonder why I love her like I do, Oh yeah it's paid for and still looks and pulls great.