OkieFlyer
En-Route
The upper piece is a pretty complicated piece of aluminum. Given the number of STC and aftermarket PMA parts for 182s, this is one that I think someone would have started to produce already if it was economical to do so. The good news is if you loose the left one, it costs less than the right one (supply/demand pricing in action).
Good news for somebody I guess. I lost the right one.