Lippert Frame Failures
I have a 37 ft 2005 Keystone Copper Canyon Sprinter. The part of the trailer frame that the pin box bolts to is breaking away from the rest of the trailer frame. The frame is manufactured by Lippert...
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My 30' sundance xlt, was showing almost .375" of flex on one side, despite this flex being within Lippert's standards, I decided to investigate further and removed the plastic flex on the underside of the bulkhead providing access to the entire area. Yep the welds are fast and hot, but after 20k miles everything appeared okay.
You might consider removing the plastic, and arranging for a mobile welder to reweld and insert gussets.
When reattaching the plastic I increased the number of screws by 3x. A box of finish washer painted white with a clear coat, and they blend in somewhat better.
I determined the flex was also due in part to the plastic flex not being properly attached.
The tech support at Heartland was immensely helpful, and it was their suggestion to instal an air pin box, went with the try-glide, and it has removed much of the stress on the equipment when towing on rough roads.
You might consider removing the plastic, and arranging for a mobile welder to reweld and insert gussets.
When reattaching the plastic I increased the number of screws by 3x. A box of finish washer painted white with a clear coat, and they blend in somewhat better.
I determined the flex was also due in part to the plastic flex not being properly attached.
The tech support at Heartland was immensely helpful, and it was their suggestion to instal an air pin box, went with the try-glide, and it has removed much of the stress on the equipment when towing on rough roads.
