They weather seal the bottom of the rear window frame where it protrudes through the door jamb when raised. used only on 2 door hard tops and converts.......Bob
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Bob Beck
39 Chev PU
69 big block Corvette
55 Buick 66C
57 Buick 46C
55 Olds S-88
56 Chrysler St. Regis
AACA, BCA, WPC, USHGA