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SignUp Now!I crossed checked it for you....it's the GM OEM part number for the 86-87 trunk weatherstrip. Hope this helps.
Bruce '87 Grand National
I just went to Google and put in gm part number 20211820 and 20211820. It took me to GM parts online and showed that these are the original GM part numbers for the roof panel T-Tops and no longer available, discontinued.
Your part number seems to be the new number for GM T-Top weatherstrips. I don't know if they are different or not.
I'm trying here but I'm just a rookie..
Bruce '87 Grand National
Ah, Jeez! I just realized that I'm doing research for the T-Top weatherstrips!!!!! I'm so sorry, I don't know what in hell is wrong with me! Your part number IS for the trunk of your GN, as for a different number, I can't find it other than the one you supplied.
Please, please disregard all previous crap about T-Top weatherstrips! I really think I'm losing my mind and I'm so damn embarrassed.
You can report me to anyone you like, I deserve it. I feel like an idiot!!!!!
Bruce '87 Grand National
You're welcome, B.
I'm now off to see a psychoanalyst.
Bruce '87 Grand National
Bruce, you just have sometimers. Sometime you know what your talking about, others times you don't. Happens too every old shit,me included.
Yea I'll tag @Dennis Kirban and hope he responds or anyone else with any input is greatly appreciated.
Don't worry Bruce someday somebody will search for ttop info and find their answer here in this thread, with a good laugh to boot.