Got a call from someone that has one plymouth popout for sale. His measurements were 14", 26" and 27". That's the length of the stainless piece that acts as a hinge cover, the bottom of that piece to the extreme outer edge of the big C and the top to the same location. Mine are 14", 25 1/4" and 26 1/4" which I think will be the same as yours. My large C numbers are 2842620 and 2842621, the part that attaches to the large C is 2841018 11059 (both sides) and the part that attaches to the window is 2841020 42989 (both sides). Yours are probably the same. If someone has a Plymouth popout and latch out I would appreciate if you can check the measurements and your latch numbers. Would like to know if Dodge and Plymouth used the same latches.