Does anyone sell replacement torque boxes?

[Animal Lawyer]

Started taking care of rust and both torque boxes have a reasonable degree of rust/corrosion. Body shop feels one MUST be replaced, but once it is that far apart it pays to do both and be done with it. Are the torque boxes reproduced or do I need to try and find usable originals (and if so, any suggestions who might have them).

 

[tpj71mach]

I know that NPD offers the rear torque boxes.
https://www.npdlink.com/product/rea...e%2Bbox&top_parent=200001&year=1971&year=1971