Yes, we lost a strap just outside of Las Vegas, went to camping world, bought new straps ( they DO make a difference ) finished our trip, came home, bought a Jeep Wrangler to tow 4 down. That said, what dolly do you have, and what car are towing ( it DOES make a difference )
Why we lost the strap is still a mystery, we had checked them a couple three times during the 300 mile trip and they were snug and tight...
....and we do have our Acme dolly for sale!
2012 Winnebago Sightseer
...and a dog named Belle