Expansion Plug Question - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-10-2007, 07:38 PM   #1
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Default Expansion Plug Question

What'* the size for the Expansion plug on the 3.8 that'* on engine block above the oil pan? It'* the two big ones on the block, transmission side. If you know, I'd also be helpful if you have any tips on replacing them as well.
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