I have a dart and have not done a plymouth in a while ,but. take a measurement of the center of the rear roof bow. mark it, take a measurement of the radiused bottom corners of the metal dutchmans panel, find centerline. is the rear curtain(window) installed? if so fine centerline of curtain. measure the marks center line at the curtain to the rear bow (write it down,should be in the 24 1/2 range, if not adjust it using the side tension wires,). raise the header bow up using a 2"x4" piece at the windshield. Mark the centerline of the top on the bottom and the top side of the front header,rear bow and bottom curtain then start normal install procedures. don't forget to do the side sail panel split so you don't rip the top as soon as you lower it.
here is bow height measurement. and you need to set it before the rear window goes on or it'll change the way you install the top and look horrible(don't ask cause I ain't admitting to doing that)
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Here is your setting for that rear bow height 24 1/2"
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here is where the slit in the top goes so you don't rip it the front 1/2 part goes into the well liner and lets water drain into the well to go out the bottom of the liner onto the ground, it does not get screwed in place until the red arrow
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no that's not me, I'd be beating the hell out of that guy for walking on my trunk or dutchmans panel) but did you notice he forgot to raise the front header to help tighten the top. yup just that little mistake cost the owner a loose top that might have wrinkles.
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this is what happens when you DO secure the front and Don't make the split
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the split usually is directly below the rear bow. to help with wrinkles and so you can tighten the sail panel without wrinkles.
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hope this helped
