I am not trading off my Dart! Need a new truck.

talking about the 'death shake" or ^^^ tire shaking, from what I have found, it is in trucks with non standard size tires, AKA large tires. My fleet of Ram trucks, over the years between my brother and I at lesat 30 between 2005 and now, have had ZERO issues with the Death wobble. We keep the right sized tires on them. LOVE the Ram trucks.
Mine has the factory 20 inch wheels and tires. Started at the same time the rotors warped. Had them turned. Stopped the brake pedal pulsing, but the wobble stayed. I would look at the Ford with the 5.0. Engine. The 5.4.i had was gutless. Had to floor it to make it go.also the spark plugs break in half, sometimes the tip falls in the combustion chamber. Requires a special tool to remove.