NHTSA Complaint #11623904 — 2021 GRAND DESIGN MOMENTUM

I had noticed the Pin Box flexing, especially over bumps or any rough road or bridge approach. As it got worse I could tell we a lot of flex in the frame area where the Pin Box is located. I contacted the dealer and they examined our RV and determined the frame was flexing due to the bolts connecting the chassis to the actual frame of the RV body being to small and working loose/broke. The dealer replaced the bolts with larger bolts and advised the flex is now within specifications. It is better but it's not great by any means. I'm concerned as the RV gets older the condition will get worse and could even become hazardous. This condition has already affected the value of the RV and when it's out of warranty I'll have no recourse other than to fix it myself.