ID these shock plates

These shock plates are larger than the shock plates that I have on the 8.75 on the 68 Barracuda.
The spacing on the U bolts is the same.
I am going to be putting these up for sale and I don’t want to steer someone wrong on the application.
1) Are these truck or C body or maybe B body 8.75 shock plates
2) would they fit / work for an A body application?
Thanks

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