I had to replace the tie down anchors in our 2013 Sandstorm T266SLR. The tie downs from the factory are light weight, cheap, and held down with 2 wood screws, some of which do not even go through the frame. At the end of our first 50 mile trip, we were a little less than happy to find one of our ATV's was rolling around in the back because the d-rings came apart and one of the straps holding a motorcycle had come undone because the d-ring bracket bent and one screw pulled out of the floor.
The Sandstorm Toyhauler d-ring brackets that come from the factory are not designed for strapping down anything heavier than a bicycle. We are glad we figured this out with a couple of the kid's toys before we tried hauling one our street bikes or the Polaris Ranger.
The dealer said that the brackets are not covered by warranty and any bending or breaking is caused by misuse. Just a warning to anyone that plans to use their Sandstorm for actually hauling toys, be sure to take the time to replace all the tie down points and put bolts through the frame when possible and use metal plates.
Here is a link to the d-rings that we installed:
D-Rings & D Ring Tie Downs: Trailer Tie Down Anchors & Weld On D Rings
These are the type that all other toyhaulers we have owned had and never had problems. They are much better than the 300 lb load limit of the factory tie downs.