3,400 mile road trip in 73 swinger

I recall the road trip my wife and I did. It wasn't fun, but we moved in thread of winter during a bad storm in 94. Driving my 70 Dart with a u haul trailer behind,and the trailer so heavy I could just barely pick the tongue up to connect it. All this, stock drum brakes and the Rocky mountains too. It was terrifying...we had to pull over 10 minutes from our destination to let the brakes cool off,they were smoking nbad.as the last hill was a 30% grade...