Originally Posted by topside
Thinking about it, I don't recall any of the screws being 3" long on the '70-'72s.
Maybe I'm wrong, as I presume the OP measured them.

You can try this guy:
https://www.ebay.com/itm/144496709892?

Not the pitch requested, but search his store.
I've bought hard-to-find stuff from them before, no problems.



They’re longer than 2 3/4” not quite 3” but close enough that I called it 3”. I’ll take a look there and at R/T specialties. As a heads up top outer screw is the “3” inch one. The other three are each the “1” inch screws

eBay-cdwmotorsports