Just as I thought, I'll see if I can pick one up tomorrow.

I found the battery on the Interstae site, model MTP-93 :

Cranking Amps 1000
Cold Cranking Amps 850

I'll take the old battery with me just to make sure that size is the same and the CCA is the same.

Thank you for the input!!

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GC
1987 300E 104K
1984 300CD 112k R.I.P