Thread: casting numbers
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01-18-2008 12:16 AM #1
casting numbers
I'm just trying to find casting numbers on my TH400 and 12 bolt rear end, I've searched all over and can't find anything except on the rear end: 0140 and in another place 9969, and a GM8, but nothing that looks like a casting number. I've searched about 100 websites trying to find out where they should be, I think the tranny should be on the left just above the rear plate??? Any ideas. Also do I just compare the teeth on the rear end to get the gearing ratio??
Thanks,
Sean.
Thanks Glenn, it’s believed to be a Gen 5. 454. I’ll see if I can snap some pics of the stamped and cast numbers and post them here. Maybe we can define the year and model
GM Engine de-coding