I think my a-833 is an overdrive unit

caferacerx said

are you saying an over drive 4speed is worth $200 to $300 more than a standard 4speed? I find that hard to believe

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That's exactly what I'm saying, the OD unit was not built to the numbers of the standard 833 and I know of 2 people right now looking for one (well one for sure) up here BTW, shipping cost sucks. B Body guys love them.