Does anyone currently reproduce the rubber "flaps" that go on the rear inside of the rockers near the front leaf spring perch? How about a GM part number?
Were they all the same across the GM line or did each model take a different one? Thanks.

They are available in reproduction through most (if not all) the resto parts places.

Part #4615576 I don't know of anyone that reproduces them

Rick's p/n RC-535, $4.95/pr

Part #4615576 I don't know of anyone that reproduces them

I just pulled that same part number out of a 69 Bird

Has a date also
D-3-105

FWIW

Yeah, I've been guarding my drain flaps for 6-7 years, as they were not available back then. I never put them on, as I couldn't remember where they went. I kept thinking they went in the rear wheel well, but couldn't figure out where. I was just looking in the Ricks catalog and saw it is now available.

Also been guarding my front blinker light cable clips that go on the front of the subframe. Guess I should install them before they come up missing. :)