JRHaelig Posted May 14, 2023 Share Posted May 14, 2023 (edited) Looks like I have to pop out at least the driver's side rear freeze plug to get in there and persuade some gunk out. Rather than buying the assortment pack from the old Buick vendors, I'd like to go to NAPA and get the 1 size replacement plug I'll need. Can anyone advise what size that actually is? Thank you, as always. Edited May 15, 2023 by JRHaelig (see edit history) Link to comment Share on other sites More sharing options...
NailheadBob Posted May 15, 2023 Share Posted May 15, 2023 Buick group # 1.146 Part #1330564 fits 1936 thru 1949 size 1-61/64” O.D. Dorman #555-041 Buick Farm may also have this Bob 1 Link to comment Share on other sites More sharing options...
JRHaelig Posted May 15, 2023 Author Share Posted May 15, 2023 Thank you very much, Bob Link to comment Share on other sites More sharing options...
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