What is the brand of the manual drop down seats used in the 2006 290? Do they still make latch parts for the seats? I need to replace all of the front latch brackets that are riveted to seat frames on both the drivers and passenger bolster seats? If I can't buy them I will have to make them.
Thanks for any assistance you can provide

As I recall, in 2006, Velocity bolsters fabrication was contracted to a third party - i.e. they weren't built in house. I'd recommend that you take a picture of your bracket and latch mechanism and send to Velocity to see if they can source those parts for you. With luck the same manual latch mechanism may be still used today.