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Group size 78, but my 1996 Regal had a group size 75 in it when I got it 2 years ago and it has been fine. Size 75 was the standard battery for 1995 but was increased to size 78 for 1996. Many of the newer size 75's are actually stronger than the old 78's, so you can probably get away with a 75 which is a little smaller and lighter.

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17y ago

What else can I help you with?