mrekim wrote:
Here's an interesting side item. The left bracket is the one I originally had. My "teardrop" replacement was an entire older version dual cam kit. Note the moved mounting tabs and the 90 degree angle on the inside vs the large radius on both sides of the other one.

This is "different". What you mean "teardrop" replacement?
The bracket on the left where the main frame plate is made from 2 parts welded together is something new, well to me anyway.
See here the last new DC frame bracket set I had bought in 2007. They where still USA made then. These are all gold color parts for the DC arms/chain plate.



Here are pics of the 1st new 2010 redesign HP DC. Notice the inside bend radius is now really large.


The frame bracket you show with the welded pate for the set screw shifts the cam arm into a different location. The older gold color DC had the cam arm clevis tabs the outside of the A frame.
Then the new redesigned 2010 silver vintage has the cam arm clevis tabs about on center of the frame plate. They also made a new cam arm and a different yoke.
Then this different 2 pieces welded frame plate has the cam arm clevis tabs favoring the "inside" of the A frame. What year and when you get these?
What bracket(s) where you using when the TT frame bent? And were both the left and right made from the same method? (all 1 piece or 2 pieced welded)
This is a new puzzle piece. Lets see what it might fit.