GM Service Manual Online
For 1990-2009 cars only

Standard Option

Cold Cranking Amperage (CCA)

600 A

Reserve Capacity Rating

115 Minutes

Replacement Battery Number

78-6YR

YF2 (Ambulance upfitter) Option

Cold Cranking Amperage (CCA)

690 A

Reserve Capacity Rating

115 Minutes

Replacement Battery Number

78-7YR

8Y9 (Dual Batteries) Option

Cold Cranking Amperage (CCA)

770 A

Reserve Capacity Rating

115 Minutes

Replacement Battery Number

78-7YR