Rear diff markings and codes.

Discussion in 'Mopar General Discussions' started by khuebner250, Sep 13, 2018.

  1. khuebner250

    khuebner250 Well-Known Member

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    I am thinking about putting assembly markings on the rear housing and center section of my 8 3/4. What would the stamp #'s/codes have been for a 1968
    8 3/4 with 3.55 Sure grip or a 3.91. any ideas. Seems like hard info to find.

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  2. Dana67Dart

    Dana67Dart Most undignified way to get to Colorado!

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    I think the Dave Wise books have that stuff

    Products | MMC Detroit

    I also saw in a post here on FABO that the underside of the center section has color codes for the the gear ratio.
     
  3. MoparLeo

    MoparLeo NRA PATRON LEVEL LIFE MEMBER FABO Gold Member

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  4. Dana67Dart

    Dana67Dart Most undignified way to get to Colorado!

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    That's the list I was thinking of.

    Just noticed that it only lists 741 and 489 center sections. I suspect the 742 would be similar. I have a 742 from 12/66 with 2.76 gears and a Sure Grip has 2 yellow and 1 orange (from front to back) There might be a bit of white right before the yellow but not sure
     
  5. khuebner250

    khuebner250 Well-Known Member

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    I found this anyone know what a 3.55 code would have been?

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