Originally Posted by cpaharley2008
I have read those towing with the Andersen Ultimate need chains since it is a ball mount adaptation.
True, in most places (hitch rules vary by jurisdiction).
Andersen sells a kit (3230 - Ultimate Safety Chains
) with alternative for the coupler (the bolts which clamp the coupler onto the trailer's kingpin) having loops for the safety chain. While convenient, I would not be comfortable with this arrangement.
I have one concern with this setup. The most frequent use of safety chains is to retain the trailer when the operator fails to properly latch the coupler (although many people report a properly latched coupler coming off the ball, I think it's more likely that it was never latched...), and this would work for that purpose. But the other function of safety chains is to keep everything together when a component fails. To work for that purpose, the chains need to bypass the components which could fail.
For instance, if the ball breaks off of the mount the chains are still there, since they're not attached to the ball. If the mount comes out of the receiver, the chains are still there because they are attached to the receiver, not the mount. On the trailer side, the chains normally attach to the frame, not to the coupler which might (although it is unlikely) come off, so that the chains work as backup.
In the Andersen Ultimate 5th Wheel Connection, the chains should bypass anything which could fail or fail to be latched by the operator. On the truck side, that means they need to attach to the truck's structure (or, more likely the brackets bolted to the frame), not to the removable pyramid frame... and that's how they are done. On the trailer side, Andersen's kit would attach the chains to the same bolts that hold the coupler onto the pin... so if the failure is that these bolts are loose or break, the chains don't do any good. Why not attach them to the pinbox instead?
Eyebolts could be installed in the pinbox (by drilling holes in the pinbox). Two of the bolts holding the box sections together could be used to mount loops as chain anchor point. The eTrailer page for the safety chain kit for the Reese Goosebox
(another ball-and-socket system which replaces the lower pin box) shows the chains attaching to the trailer through lugs which are built into the Goosebox; the Andersen equivalent would be to attach to the Escape's lower pinbox.