GM 7.5 Posi

Discussion in 'General Automotive Tech' started by ART T, Jun 23, 2017.

  1. ART T

    ART T Active Member

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    I need a posi for my 81 Malibu. What years of Camaro, S10's will interchange?
     
    ART T, Jun 23, 2017
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  2. Poison_Ivy

    Poison_Ivy Dogzilla Fan

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    You probably mean to ask what the latest model of these will interchange. Anything older to 1955 shouldn't be a problem.
     
    Poison_Ivy, Jun 23, 2017
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  3. ART T

    ART T Active Member

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    Let me clarify. What stock 7.5" unit will interchange?
     
    ART T, Jun 23, 2017
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  4. KevinVarnes

    KevinVarnes Well-Known Member

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    Are you looking for the entire rear end assembly or just the differential? I believe all A and G Bodies used the same 7-1/2" rear end except the GN, T-Type, and 442 which got the 8-1/2". I would think any Cutlass, Monte Carlo, Regal, Grand Prix would swap right in. I think the Monte Carlo SS had the 7-5/8" which isn't much better than the 7-1/2". Obviously if you could upgrade to the 8-1/2" that would be ideal.

    Here is some more info if you are looking to swap the entire rear end.
    http://www.maliburacing.com/tech_rearend_swaps.html
     
    KevinVarnes, Jun 23, 2017
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