Does anyone have an interchange manual that shows what vent window assemblies interchange with the 68-70 Plymouth B body convertibles? The only thing I have to go on is the vent window seals fit 66-67 B body hardtop and 68-70 B body convertible. I have heard the 4 door and wagons are the same but have no idea. Any assistance will be greatly appreciated.

95 views and nobody knows. I'm starting to think there isn't the knowledge base on this website there once was. Maybe I should ask Mark Worman.

Not many convertible owners, and/or they're busy right now.
Patience, grasshopper.
I only have about 24 A & B bodies' worth of restoration knowledge, and never owned a convertible myself; saw one ('69 Road Runner) up close a year ago.
They might use the same glass & seals as a sedan & wagon, but those have full upper door frames...

Im not 100% , but pretty sure the vent wings on the 66-67 sedan and wagon are different than the 66-67 hardtop + 68 up convertible.
BUT,,,,, I could be wrong

Hollanders shows: #2913 for the vent glass.

V3580-1 R & L. Basically 66-70 B-Bodies. It's showing 4-dr. sedans, station wagons, convertibles, etc. (I would have guessed 68-70 B-Body convertibles only). NOTE: this is not indicating the framework, but the GLASS.

I measured the vent window glass on my 69 RR vert, and my 69 Belvedere wagon , they measure the same

the glass is the same as the above listed sedans but the vent window frames in question would be

'66-'67 hardtop
'66-'67 convertible
'68-'70 convertible

are these the same? I think the pivots/locks are different "style-wise" between '67 & '68