John and Bill- U bolts! Good call- we will try that. So I suppose it’s an original frame then and before the recall. Some of the screw heads just rusted off as we tried to get them out lol so they must be fairly old. Tomorrow we are going to try and get it bolted and sorted, and back to it’s original solid shell! Thank you guys for helping me pin-point this major issue before it got worse. Couldn’t thank you more really, and hope to return the favor to the next new
trillium owner.