With the kind assistance of Trevor78, the following clarifications on the OEM Freedom Batteries installed by GM during the build of the Trans Am’s in the late 1970’s, with references to the number in box 47 on the factory build sheet:
Common battery part numbers for the late-70's were #1980400, 1980401 and 1980402. Each of these batteries had a different cold cranking amperage (cca) and each is associated, respectively with the following factory installations: Light Duty, build number 400, which was a R85-5, and had 350CCA; Regular Duty, build number 401, which was a 1102484 and had 430CCA; and for Heavy Duty, build number 402, which was the Freedom II R89-5, and was the battery used for the UA1 option and had 465CCA.
|