'70 Dart 392 Project; what direction?

Not sure what rules Procar is playing by but if this is a $91 vehicle specific “adapter” color me unimpressed. Website said both were in stock (driver and passenger side). Just received a box with no invoice or product ID and only one adapter.
Clearly the wrong one…. Just called, talked to a guy for 2 minutes who said “let me transfer you to another guy who handles online orders” which turned out to be a voicemail machine…. Great. ‍♂️‍♂

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The big hump closest to the rocker panel is where bench seats mount. Push the bracket inward and you will be good. Note the dimples in the floor close to the hump? That's where the holes go for bucket seats.