Been readin' this forum for a couple of months now, there's a lot of good info. I have yrs of experience w/diesels. I now have a '05 8.1 pullin a zf6 regular cap 4x4 & 4.10's, MT classic II and BFG 285/75-16 KO's. Like it alot... no performance mods yet. Pull a 29' 5th wheel.