I'm assuming the 3.7 V6 has the same issues as 4.7 since as I understand it's the 4.7 with two fewer cylinders?
Having trouble locating a decent 5.2 that's not badly rusted. Especially above the rear wheels.

Came across a nice condition '04 with the 3.7 and according to the carfax it's dealer maintained since new with regular oil changes and all the recommended service intervals. I know it won't have the grunt of a V8 and the mileage won't be much better if at all. But again, I'm not going to do much towing with it. Mainly home depot runs, towing bikes, and 4x4 for winter.