different width rear ends in 73

Discussion in 'Transmission & Driveline Topics' started by Ruthead, Sep 8, 2021.

  1. BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

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    i would not spend $10 on an 8.2. No, 8.5 parts will interchange.

    If it is a posi, sell it to a 1st gen guy.
     
  2. Ruthead

    Ruthead Member

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    Yep It sure wasn't what the guy said it was that's for sure. Prolly still laughing at me.
     
  3. big gear head

    big gear head Veteran Member

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    No, 8.2 and 8.5 are not the same. All first gen 10 bolt rear ends are 8.2. All second gen 10 bolt rear ends are 8.5 except for '70.
     
  4. Ruthead

    Ruthead Member

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    Mech took cover off and confirmed it is a posi.

    So, with the info confirmed by mech on posi and #'s on housing and 8.2 not interchangeable with 8.5 sounds like I'm done on this deal. I got no use for it. Is it worth anything?
     
  5. BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

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    Its a posi, so some 1st gen or nova guy might buy it. I dunno, $200? Hopefully it has decent gears in it. Or tell the jerkoff you bought it from to take it back. lol

    Luckily used 2nd gens rears aren't typically too much. Or if you mechanic is any good you could just put new parts in your current rear.
     
  6. black_aerocoupe

    black_aerocoupe Veteran Member

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    If memory serves, the 8.2 pinion nut is differently sized than the 8.5 pinion nut.
     
  7. tom3

    tom3 Veteran Member

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    Could be an 8.2 posi for a 70 Camaro might actually have some value to a restorer?
     
  8. big gear head

    big gear head Veteran Member

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    The 8.2 pinion nut uses a 1 1/8 inch socket. The 8.5 pinion nut uses a 1 1/4 inch socket.
     
  9. BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

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    But the widths would be the same if that was the case.
     
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