I'm shopping used Fords F350 SRW crews with the 6.7 ltr diesel. The 2011's are much more numerous than the 12's obviously. So I'm wondering if there were any problems with the 11's and if it was worth paying a little extra money to get a used 12 versus an 11. Have'nt been much of a Ford guy in the past but this looks like a really stout, well built unit.
