Bought my 2007 Dodge Ram 3500 Cummins Diesel Mega Cab (duely) new.

Have only put fuel, oil and tires into it in 100,000 miles and the recommended transmission fluid change at 60/70 k? Nothing else, not even brakes.

I don't baby it. I work it hard. It constantly has a load of 1000-1500 lbs in it. And occasional runs a load of 3000-3500 lbs.

Occasionally pulls a 14,000 LB trailer from Texas to California without knowing it's back there, even up the mountains while passing everybody.

Probably more than what you need, but that son, is a truck! Tells ya what a Dodge is capable of.