Looking for a part number for the piece which connects the rear panel (FD01-70-750C) to the rear quarter (FDY1-70-400C) below the tail light housing (FD01-70-490B) on the right side. Can't seem to figure it out from any parts diagrams online. Left hand side shown :

 

I thing you posted in the wrong section buddy

 

Looks like part 50-260 shown on page 5010 of the 93 parts catalogue.

It is likely intergrated into the bumper skin.

 

Figured this was kind of exterior related.. think it would do better elsewhere?

I thought that might have been the piece as well, but you are right, it's integrated into the bumper. Some of the parts have different shorthand designations so I'll also post the long form for anyone searching in the future (LHS : FD01-50-3B0A RHS: FD01-50-3A0A)

You can see an actual picture of that part here
The part I need is a bit wider and appears to be spot welded on to the rear panel and rear quarter; circled in the blue-green color in the attachment

 

Page 5340? Parts 70-440 and/or 70-11Y?

 

R FD01-70-440B
L FD01-71-440B

R FD01-70-11Y
L FD01-71-11Y

Those don't quite fit the part profile. I'm pretty certain they are installed higher up, underneath where the hatch lands and behind the trunk interior.

 

There is a separate body work manual out there.

 

I found this manual:
Current working theory is the piece is FD01-56-251B

 

The link above goes to a trojan warning on my computer.

 

Strange.. well, I'm thinking it's #12 on this figure


Edit: also a bust. Actual picture here.