1. mopardude318

    mopardude318 Well-Known Member

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    Hello. I have an 833 4 speed that came out of another A-body car. I took pics of the numbers cast into it. Can anyone tell me exactly which year it is from, and maybe what gears it has and if it has a 307 or 308 bearing. I have no clue, and don't even know if those numbers will help.

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  2. crackedback

    crackedback FABO Gold Member FABO Gold Member

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    What's on the machined pad in your first pic.

    That will have the best info on it.
     
  3. mopardude318

    mopardude318 Well-Known Member

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    its so lightly stamped thats its not readable..like a half a$$ casting #
     
  4. chignikred

    chignikred Well-Known Member

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    Bearings are the easy reply. They would be '307'. gears most likely are the 2.66.
     
  5. mopardude318

    mopardude318 Well-Known Member

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    Now how are you able to tell its a 307 bearing?
     
  6. chignikred

    chignikred Well-Known Member

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    I first looked at the extention housing casting number and recognized it as an A body and know that it is a 307 bearing. Made assumption on case. BUT I did a quick look at a another case in my basement, since I had to move it anyhow and it is the same case # as yours 99129, which is a 308 bearing case. Easy enough to determine, measure it. The 308 is 3.5" od.
    The date on the stamp pad is the 4 digit after pp833 on the 10,000 day calendar.

    So yours is likely a rebuilt unit where parts were mixed around, which shouldnt matter for function
     
  7. mopardude318

    mopardude318 Well-Known Member

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    ok. thank you :)
     
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