Blueridge it takes a little muscle but much easier once you study and understand what you are dealing with nefore attempting this task or it can get frustrating quickly. Since you are new to this take a close look at the hook in this pic. One one each side of car same location each side. The seat frame is made up of round steel wire and the lower foward wire is retained by these 2 latches.
View attachment 303835
Note the ramp design of catches this is important. Move front seat forward. Sometimes on some first gen Camaros I can do this from outside the car. Usually I have one foot in car, push down hard on the rear seat top front edge right where the vinyl piping is on the seat cover and directly over the location of the seat catch. Compressing the seat while at the same time pushing rearward on the seat piping frame corner until you feel resistance, at that point maintain rearward force (you have the seat in that lower area of catch where it starts rising and going aft) maintaing rearward force slowly start removing all downward force allowing frame wire rod to ride the catch upward, slight help with your spare hand lifting below the seat to help seat rise in the catch. KEEP YOUR HAND AND FINGERS CLEAR OF THE CATCH SO FINGERS DONT GET PINCHED. When you hit that back upper corner of the catch you will know it, at that point keep your spare hands upward force on seat frame bottom so seat doesnt drop back down. At this point you have the seat frame wire rod resting in the top rear 90 degree area of the catch. Maintain some upward force with your hand that is still under seat frame and pull forward on lower seat frame guiding it out of catch. As you clear the latch tilt seat front upward so rear riser in seat clears the seat back and SUCCESS!
It is really pretty simply if you understand it is just a rolling action down, rear, up, forward. But also understanding when to apply what force to make this circular motion needed to "roll" the frame out of the latch. May sound dumb but draw a pic of the latch and tape it to the seat back so you understand actions needed as you are performing the task.
I have seen guys, bent over seat beat on it, cursing and fighting with this task over and over. But once you do it and understand the force and design it becomes really easy. I am old and just had a knee replaced that I can't kneel on for another 9 months. Still pretty confident I could still get the rear seat out without any trouble or help using this procedure. I have never needed tools, but that doesn't mean they don't make it easier, they may. Some 1st gens may be harder than others.