Thanks, you have help narrow the field some. I have the choice of a GV OD and Dana 70 rebuild, 4.56 now to 3.55's or a different truck. I am not sold on the GV OD being up the job of handling 440 and the tool boxes. Both Fords are Crew Cabs Duallies and 8" beds, no fields to turn around in Silicon Vally so they are out.