Lol, the dirt just adds the to big total "POS" package. Speedometer is off by 3mph at 70mph per GPS. Have to remind my wife of that often............she can't figure why everyone's constantly on her bumper.
Here is a pic of my F-550 gauge cluster...I guess I own the worst diesel truck made in 20 years...LOL
My BIL had the same thing. Helped him put in two engines 11 months apart. The 6.0 is a good engine with a few mods. When we put in the 2nd he put the Bullydog on craigslist and had the PCM updated. No more problems. When the 6.0 is right they run like a raped ape.
Did I miss it somewhere or did you find out what all he had done to it? Does it have the EGR delete and a new oil cooler? If it's got that and especially if it's got new head gaskets and ARP head studs, then I'd go for it in a second. Even if some injectors to out, (all diesels have injector issues sometimes, Chevy is probably the worst), and even if the FICM needs replaced at some point, neither of those are too bad. The rest of the truck should be bulletproof.
PM him and ask, IIRC he works on heavy/large truck diesels. I don't think I remember seeing what year the SD is?
