Ducky's Dad
Explorer
The Taco is better. Period. Why? Because you already own it. It will take one hell of a lot of mileage improvement to cover the $13K cost of entry to the ZR2. And then there's the mods you have already done to the Taco that you would do again to the ZR2. And the GM reliability issues. The pure economics argue against making a change to the same kind of truck from a different manufacturer. If you are just horny for a new truck, fine. But a dispasssionate and rational analysis says you will be wasting money.