Fold down rear seat

Got a good deal on a fold down rear seat for my '69 Barracuda. Is it a simple bolt in on a non fold down car?
It has hinges on either side and looks like shims on the flat part of the hinges.
I know that I am going to have to change the seat back with my upholstery, but other than that will bolt in to my existing configuration.
Thanks, Pete.