Death wobble is horrible on those if you have bigger tires. Steering is as loose as a $2 hoe.. There are stabilizing bars you can get to help it stabilize pump to the frame.
With my old 2001 5.9 ISB CTD 24v i replaced the pump, added lift pump, and tossed on a 4" turbo back and i was getting about 19 MPG city and 27 Highway. With new 6.7 its not broken in yet, only 31k miles. But the thing can't get over 12MPG city and 18 highway and thats if i baby it. So dissapointed in the new Cummins engine
I miss my old 24v