vr1967

I am putting heater treater doors in my 06 megacab (none were broken, but was in there changing heater and evaporator core) and trying to find a part number to the plastic piece for the rear outlet flaps. It is what ridenrace6 has circled in post 2 on this thread:

https://www.dieseltruckresource.com/...heater+treater

I have a pdf of 2006 parts manual, and it shows 3 setups, but none show this piece unless I have missed it.

Any help anyone can give would be appreciated.

Thanks,