DSP 40 and DS404

Discussion in 'Experienced Truckers' Advice' started by flat-step, Mar 29, 2015.

  1. flat-step

    flat-step Light Load Member

    96
    21
    May 11, 2011
    0
    Hello All,

    I have truck with DS404 3:70 rear diff which needs to be replaced in the near future. I also have a truck which i took off the road last year with 6 month old DSP40 4:11 diff. Can i swap them? and if yes what else do i need from the donor truck to make it work. Thank you
     
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  3. 1johnb

    1johnb Medium Load Member

    542
    404
    Jun 13, 2012
    New Paris Ohio
    0
    They will interchange but you have to do both because of the ratio difference. A DS40 & DS404 have the same bolt pattern and diameter.
     
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