They might slightly improve but all repro weatherstrip is total crap compared to factory stuff. Original material was a very low density open cell foam with a latex skin. This made for very soft and compressible material. This manufacturing process was banned for environmental reasons in the U.S. in the 70’s which is why most NOS examples have a made in canada sticker. Canada eventually also banned the process. Repro are all made with a hard solid rubber type product that simply doesn’t work well. We all here it at car shows when doors and trunklids need slamming to close and window roofrail weatherstrips that cause grief for power windows.
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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
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