I,M TRYING TO REMOVE THE BACK SEAT OF A RUSTY 69 FASTBACK BARRACUDA.THE FRONTS I BASICALLY RIPPED OUT BECAUSE OF THE RUSTY FLOOR.IT,S IN NICE SHAPE AND DON'T WANT TO WRECK IT AND HAVE NEVER TOOK ONE OUT BEFORE.I TRIED KICKING THE BOTTOM LIKE AN E BODY AND NOT SURE IF THAT,S THE SAME WAY OR IF IT,S JUST RUSTED.JUST WANTED TO KNOW HOW TO TAKE THE BOTTOM AND BACK OFF THANK YOU!!!!!!!!

Same principle.

The top piece is bolted in,(on the fastbacks and convertibles, not sure about the non fastback coupes ) the bottom section is held down like all other rear seat Mopar's I've own, press down while shoving it backwards to unhook from the floor retainers

OK GOOD TO KNOW!!! THANK YOU!!! BECAUSE I HAVE TRIED WITH CROW BARS AND BEING ON MY BACK AND KICKING IT HARD!!! WITH MY BOOTS,IT REALLY MUST BE RUSTED GOOD,BUT NOW I KNOW THAT FOR SURE THAT IS THE WAY IT COMES OUT I CAN DEFINITELY GET MORE AGGRESSIVE!!! TY!!

i usually remove the front seats and then use my knees, one at a time, to push hard against the front of the lower back half seat and push down to the rear of the car when striking the front of seat with my knee
Be patience, it may take multiple strikes, tries, to disengage the rear seat springs retaining it into the floor retainer brackets

I have a '69 fastback optional fold down rear seat and for the bottom cushion there are two bolts back by the rear axle hump. Take those out and the seat releases from the front hooks easily.

For fastbacks with non-folding seats or coupes or convertibles I can't speak for those.

Yep!!

I thought all fastbacks had the folding rear seat???

For '68 and back that would be correct all fastbacks in those years had folding back seats. In '69 folding back seat was an option on fastbacks and without that option the seat back was fixed in place and did not fold. The non-folding rear seat had same appearance as the folding seat just no lever on the seat back and no hinges.

I'm getting ready to pull my rear on the '68 to put in a new floor. I seems to have been out because it's cockeyed and wedged in somehow. And then the fold up section is stuck from going all the way up.