I don't see this being the end of diesel engine in these trucks. More power and torque than ever, better fuel mileage and more reliable, with a better trans. I always hear people talking about how reliable the 7.3 was but how many 7.3's have been replaced because of a dusted engine. 6.0's had their problems but if maintained properly half the problems would be gone. and the 6.4's are making over 1000 lb torque at the wheels with a programmer and exhaust, everything else stock! You couldn't give me a 7.3.