1996 Oldsmobile Ciera

Electrical problem
1996 Oldsmobile Ciera 6 cyl Two Wheel Drive Automatic 101000 miles

The battery (75 month Interstate installed July 2004) was suddenly dead this morning. I managed to move the crossbar and detach the electrodes. There appears to be a bolt at the base that hold the battery rigid. The nut underneath appears rusted solid. But even if I get the not loose, there does not seem to be enough room to lift the battery out. What do I have to remove to get it out?
Craig Stevens
November 4, 2009.

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