B-body? 8.75

I will post on FBBO if there seems to be no interest here but I love this site so I figured I would offer it here first. I was told that it came from a 440 Roadrunner but I didn't pull it so I am not sure. A local deal popped up for a stock A-body size 8.75 and I would rather go for that then try to narrow/modify this one. I paid $650, looking to break even on it.
3.23 gears, open diff, 489 case. No brake lines but otherwise complete
Located in Long Beach, CA 90813, I would prefer not to ship
I want to be as honest as I can be with this so feel free to ask any questions and I will answer to the best of my ability.
I cant find my card with measurements but I will post those later today

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