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Narrow Dana 30

Discussion in 'Early CJ5 and CJ6 Tech' started by RVSwisher, Sep 9, 2015.

  1. RVSwisher

    RVSwisher Member

    I have found a narrow dana 30 out of a 79 CJ7 which has 3.07 gears. I would like to pick this up to possibly put under a flat fender but need to know if it can be regeared to 4.89 to match my flanged dana 44?

    I don't need the axel, as I have a fully rebuild Dana 27 on the project now. Just thinking if I can get it at the right price and it can be easily geared to match my rear, I might pick it up for a future swap.

    What are your thoughts?


    Thanks

    RVS
     
    RVSwisher, Sep 9, 2015
    #1
  2. Mcruff

    Mcruff Earlycj5 Machinist

    Randys ring and pinion has 4:88 gear sets but you will need different carrier as the break is at 3:54.
     
    Mcruff, Sep 9, 2015
    #2
  3. jpflat2a

    jpflat2a what's that noise?

    Very easily done.
    Just costs $$.
     
    jpflat2a, Sep 9, 2015
    #3
  4. windyhill

    windyhill Sponsor

    stay with your 27
     
    windyhill, Sep 10, 2015
    #4
  5. duffer

    duffer Rodent Power

    Don't know if everyone has had the same results as myself, but I've busted more stuff in 27's than in 25's. And 30's are a BIG step up from either, both strength wise and in aftermarket support. Like Mike said, you will need another carrier but if you are thinking about a good traction devise, it's a non-issue for the most part.
     
    duffer, Sep 10, 2015
    #5
  6. nickmil

    nickmil In mothballs.

    Actually, you will need a new case. The carrier is the cast part the axle tubes are pressed into.
    The gear ratio break on the case is 2:54(whatever) down to 3:54 and then 3:73 down to 5:38 on most Dana 30's (including CJ units).
     
    nickmil, Sep 10, 2015
    #6