I'm looking at a 2002 4x4 7.3L Excursion and a 2002 4x4 F350 Quad cab 7.3L. The Excursion has a big lift (at least 6",maybe 10") as does the F350, tires are similar, Ex has 37's with 85k miles and 35'S with 138k miles on the F350. What does anybody know, good or bad about these vehicles? Good or bad track records? Turbo problems?