I'm going to try that on the Ram. Runs cool enough, but heater core is partially plugged, and Peak flush didn't fix it completely (although helped). Yeah I'll probably need a heater core, but would rather spend the time working on the Duster.
Just part of the charm, in my opinion. As a dog lover, I would want to keep that crap off the ground, though. My '73 had a factory overflow added before I bought it.