the Black topper may be correct, it’s been a long road getting info on battery’s, I’m into it about 4 years, and I’m still getting info. 400, 401 and 402 are the last 3 numbers of the Gm part number. The earlier battery’s had the part number on. My battery failed last year, a tow truck driver that came said, no it’s not your battery, no look the eye is green, lol. They are good enough to fool a pro. Lol.
Box 47 on my build sheet says 400.
Last edited by Burd; 12-17-2018 at 12:47 PM.
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