What are these parts? Buck 91 insert

[Bmore]

Hey all,
I am putting together a used buck model 91 insert. There were 3 small plates with some shims thrown in the ash pan. I can't figure out where these would go on my stove. One has a gasket so I am very concerned that it is important. The other is a similar size with two broken off screws in it. The third looks more like a thick shim, slightly bent with a hole through the center. Please take a look and let me know your thoughts. Thanks!

 

[trx680]

you ever figure out what those parts were?
You get the 91 hooked up and heating?

 

[Woody Stover]

I missed this post the first time around. Those parts don't look like anything I have seen on my Buck. I would look underneath the ash lip at the slider rods and plates that control the air wash and shotgun air.

You get the 91 hooked up and heating?

Yeah, you could use some feedback on how it worked with 6" chimney...