Originally Posted by countrypair
Any info would be greatly appreciated.
Scalloping of the outside edges of a towed vehicle's front tires can, and frequently is, caused by the RV driver starting to make a turn, especially a sharp turn, before the towed vehicles front tires have rolled forward enough allow the caster built into the towed vehicles suspension to force the front tires to turn enough to follow the RV. Think of turning a grocery cart before any forward motion.
This failure to roll forward enough to allow the caster action results in the towed being drug sideways until the forward roll makes the tires reorient themselves to the turn.
This condition is especially abusive if the RV has a lot of overhang behind the rear axle.
ALWAYS roll the RV and towed forward before starting any turn.
To check yourself, if you have a back up camera and can see your towed, tie a white rag to the top of the towed's steering wheel. If the rotation of the steering wheel is not immediate when you are starting a turn, the towed is behing drug sideways.