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  1. #1
    Member
    Join Date
    Apr 2002
    Location
    Casper Wyoming USA
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    197
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    Corvette(s)
    91 L98 Quasar Blue, 91 ZR1 Red, 07 AO Coupe

    Default Rear end gear question?

    A friend of mine has a 67 BB with 3:57 ring and pinion gears. The question he's asking is, will a 4:11 ring and pinion gear set bolt into the 3:57 differential housing? Any help would be appreciated. 84 CF 91 ZR-1

  2. #2
    Registered User 69MyWay's Avatar
    Join Date
    Jul 2001
    Location
    Auburndale, Florida
    Posts
    6,207
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    Corvette(s)
    1969 Killer Shark

    Default

    They should.

    Stingray6974 is our resident gear expert. He should know for sure.

  3. #3

    Join Date
    Jan 2002
    Location
    Washington, Michigan
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    7,283
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    Corvette(s)
    '67 Marina Blue Convertible

    Default

    Yup, the 4.11's will fit in the diff housing, but he'll have to buy a new Series 4 carrier (Posi case) for that ring & pinion, as the lateral offset is different.
    John
    '67 Convertible

  4. #4
    Member
    Join Date
    Apr 2002
    Location
    Casper Wyoming USA
    Posts
    197
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    Corvette(s)
    91 L98 Quasar Blue, 91 ZR1 Red, 07 AO Coupe

    Default

    Thanks for the info C-2 guys. He made a decision to go with 3:90 gears. A Richmond 6 speed currently resides in his 67 so he should be fine with the 3:90 gears, again thanks. 84 CF 91 ZR-1

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