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Dana 20 and 70 into blazer?

Discussion in 'The Garage' started by gm guy, Jan 5, 2006.

  1. gm guy

    gm guy 1/2 ton status

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    I just picked up a 63 Jeep dually that has a T-18,??? t-case, Dana 20 rear, and Dana 70 front.

    I've been told this is a closed knucle front end. What does that meen?

    [​IMG][​IMG][​IMG][​IMG]
     
  2. gm guy

    gm guy 1/2 ton status

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    Sorry for the crapy pics I'll get better ones so hopefully someone can confirm that these are dana 20 and 70 axles. Could I use the 20 for a sigle wheel in rear or only dually? Can I buy wheels that fit the axles or are they obsolete. Good score or waste of time and money?
     
  3. Inu-Hanyou1776

    Inu-Hanyou1776 1/2 ton status

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    That shifter is awfully long! Anyway, you need redo the pic post. Stack 'em vertically instead of horizontally.
     
  4. sandawgk5

    sandawgk5 3/4 ton status

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    Chances are you have a Dana 70 rear and a Dana 20 front. If it is a Dana 20 front that is what CJ had in them I think not good for a 5K rig. There are a few guys on here that run Dana 70. You would have to change the spring perches and shock mounts but you have to do that with most.

    Ira
     
  5. gm guy

    gm guy 1/2 ton status

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    Thanks for the replies. So are there wheels available for these axles?
     
  6. sandawgk5

    sandawgk5 3/4 ton status

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    They look like they would be the standard 8X6.5 bolt pattern. Wheels available in all diameters from 15" up to 22".

    Ira
     
  7. atho

    atho 1/2 ton status

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    There is a Dana 20 transfer case but no Dana 20 axle.

    I have never seen a J-truck dually before. Anyway, closed knuckle means that the front ujoints are encased in little balls on the ends of the axle, and the knuckles pivot on these. I highly doubt that has discs on the front, so my advice would be to just forget about this swap.

    However, what kind of winch is that on the front? you could probably make that work.
     
  8. gm guy

    gm guy 1/2 ton status

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    Thanks for the replies. i'll part it out or sell it to get $ for my Blazer!!
     
  9. gm guy

    gm guy 1/2 ton status

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    Okay it's a Dana 70 rear and a Dana 44 front the trans is a T-18 4 speed. Anyone know anything about these?
     
  10. gm guy

    gm guy 1/2 ton status

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  11. redneckdude

    redneckdude 1/2 ton status

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    parts for the 70 and 44 are everywhere. Strengthwise, the 70 is pretty much equilivant to a gm 14bff and the 44 is about that of a 10b. Good rearend, decent front but if its closed knuckle, id stray away from that...plus you should have a 44 or 10b up front in your blazer anyway. The rear swap could be worth the time and money, id forget about doing anything with that front end...

    As for the trans, i don't know much about that sorta stuff...i know a little about gm autos, but thats about it.
     
  12. gm guy

    gm guy 1/2 ton status

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    Thanks that helps. It looks like this thing is going to sell as a whole!!! More Blazer $!!
     
  13. thor

    thor 1/2 ton status

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    There is a big following for the J truck duallys, You can recover what you have in to it. IMHO, I agree with the other inputs that it is not a good doner vehicle for a K5. Keep looking.
     
  14. jason m

    jason m 1/2 ton status

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    transmission is a T-98 model 20 ( dana ) transfercase, rear dana 70 found in the j3000 and 4000 trucks, all fronts are dana 44's. where are you located very intersted in some parts or hole truck depending on location, jason.
     
  15. gm guy

    gm guy 1/2 ton status

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  16. jk3078

    jk3078 1/2 ton status

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    Being a 63', Dont know for sure but the 44 front is prob. closed knuckel with smaller u-joints. The 70 rear is prob. a low spline count axle. Niether axle is a desirable unit under a fullsize chevy. I say sell the truck/ parts to some jeep freak as this is an un-comon truck and the funds could go to cool mods/ parts for your k5
     
  17. gm guy

    gm guy 1/2 ton status

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    Thanks, I've gottena bunch of interest so far fromt he Jeep freeks so i should be selling it pretty quick. My blazer will be getting the lift I want and hopefully the 35's!!
     
  18. OnetonCowboy

    OnetonCowboy Registered Member

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  19. ProJunkRacing

    ProJunkRacing 1/2 ton status

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    trans is wanted by many bronco owners as it is a good manual swap trans umm otherwise i dunno when i had a bronco i was looking for one but it is since long gone
     

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