how to tell if you have an 8" or a 7.5" diff

Discussion in 'Suspension/Chassis' started by dillinja666, Jun 21, 2010.

  1. dillinja666

    dillinja666 Toyotaholic

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    Is there a way to tell from the outside of the axle if you have an 8" diff or a 7.5? im looking at a couple diff here in SD and im not 100% which one I have.

    Also if they are interchangeable in the housings that would make life easier too..thanks everyone

    edit: and my axle was swapped so i dont know any info about what truck the axle came out of
     
    Last edited: Jun 21, 2010
    dillinja666, Jun 21, 2010
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  3. HALMS

    HALMS Enthusiast

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    when your looking at the 8" housing the two most top bolts are at the same level, on the 7.5 there is only 1 bolt centered at the top.
     
    HALMS, Jun 21, 2010
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  4. dillinja666

    dillinja666 Toyotaholic

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    sweet thanks!
     
    dillinja666, Jun 21, 2010
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  5. B.Y.E.

    B.Y.E. Toyotaholic

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    Would this be a G or F? Looks like the top bolt is in the center...



    [​IMG]



    This one G?

    [​IMG]


    Hope you guy don't mind me using your pics... Just thought it would help clear up some ????'s... :waytogo:
     
    B.Y.E., Jun 27, 2010
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  6. six7one_KDR

    six7one_KDR Veteran

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    I LOOK AT THE DRAIN PLUGS.WHEN LOOKIN FROM REAR OF THE TRUCK THE DRAIN PUG'S ON THE LEFT IS AN 8"R THE ONE THATS ON THE RIGHT IS A 7.5"R ONTHE 2WD'S 4WD'S ARE ALL WAS AN 8" ON THE REARS.THE FRONT IFS GREARS "RING AND PINION" CAN ALSO BE USED ON THE 7.5" 3RD MEMBER CARRIERS.:waytogo:
     
    six7one_KDR, Jul 11, 2010
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