Source for rear trim panel retainer?

Yep

Your mailbox is full.

I'm asking $ 15.00 US shipped to a US address.

I will send you 2 pieces with a no questions asked, semi lifetime guarantee (as long as i have the ability to make more, if one breaks I'll mail you another at my expense)

I have 2 lengths one is about 1/2 inch, the other is about 3/4 inch.

I measure from the flat where it sits on the sheetmetal to where the trim sits.

Let me know.