Not even sure what it's called, but I need the left-side plate that goes in the door post, and the striker threads into.
Anyone know what/where to get? Thx
If this is the part you're looking for (see below), it's the threaded plate behind that panel and was part of the "Body Lock Pillar Reinforcement Panel" installed by Fisher Body, I believe the service part number was 4469685 ("Plate, Door Striker Anchor"), but I'm not positive about that, and it's been long since discontinued. I also don't believe anyone is reproducing these, so your only option is to find one used.
Ed
Here ya go, https://www.ebay.com/itm/67-68-69-CAMARO-SS-RS-Z28-FIREBIRD-DOOR-JAMB-STRIKER-THREADED-MOUNTING-PLATES/123534121319?hash=item1cc3351967:g:mYQAAOSwiqBcDCXC:rk:1:pf:0
Awesome. Thank you both for helping, not only in identifying the needed piece, but finding them! Many thanks!!
Here's how it looks installed from the backside.