Sorry for posting a thread that probably only Cary (or maybe Mark Whitesell can answer, but I thought others might run into this issue later and hopefully find an answer here.
I bought the first set of the MiddleMotors LLC designed gussets sold by 914rubber so I'm probably the first person other than Cary to install them.
I think I figured out the two-piece side and got them installed right. The only question here is whether those holes are intended to be plug welded.
The other piece is more of a problem. After trying every possible position and comparing with the matching gusset on the other side, I'm pretty sure this is the correct orientation. The problem is that the slots for the longitude flange are running the wrong way. That will be easy enough to fix, but I didn't want to start welding and hammering without confirmation from the expert to make sure I'm not missing something here.