I guess Kent would know more than i do,I only had one Dodge,but i guess it was a good one,because i never had any tranny trouble plowing commercially for 3 yrs,and it had turned up power.I think your vehicles treat you well if you simply drive them with care and follow recommended service intervals.I do know that 1 st off with the torque the Cummins puts out,low range isnt needed much,my auto never overheated or did anything wrong,in fact it is the quickest shifting truck ive ever had from forward to reverse and back,it made plowing a pleasure.I had 3.55's and 33" tires which should be the worst pushing combo,the Cummins loved the high gearing,my problems were it nickeled and dimed me to death,it was the little things-like fuel sender,axle seal,power lock solenoid,steering wander (easy to fix,but shouldnt have to),tranny line leaks.The high output Cummins is only avaiable with the NV5600 6 speed manual,plenty strong for plowing,and all the 24 valves will rev to 3400RPM's,plenty high for a diesel.Oh yeah,it will move mountains,these trucks can put the power to the ground,isnt much that'll outpush it.
