How and why do 65 Barracudas have various trunk props?

II have the gas charged for in my car and it is an aftermarket piece but works awesome!!

The story is that the ratcheting prop mechanism was in use from the 1964 model year through sometime in mid 1965 run when they went with the spring loaded push Rod style, and used that until the 2nd gens came out in 67! The ratcheting one is probably a better design, I've seen dimples in the trunk lid from not using the upper bracket on the spring bar style, and it also tweaks the trunk from the Constant Spring pressure pushing it towards the passenger side and up!

Pishta, you can increase the spring pressure on your push Rod style by pulling the inner Rod and dropping a spacer down the tube to lengthen the Rod a bit! Use a piece of wood so you can cut a little off or make another until you get the length just right, then remake it in steel!! Geof