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Dana 60, 70, and 80?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 82Jimmy, Jun 17, 2000.

  1. 82Jimmy

    82Jimmy 1/2 ton status

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    I know a dana 60 is a really popular size...is 70 stronger? And an 80? Do they make an 80? Will it even fit on a Blazer or Jimmy? Saw an add for one for sale in some classifieds. 14bolt=dana 60
    ? = dana 70
    ? = dana 80?

    Thanks for you help.


    Bigger is Better
    Cameron Burnett
    82 Jimmy
     
  2. Waxer

    Waxer 1/2 ton status Author

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    From what I know, a 14 bolt is not a Dana 60. They are two different axles.
     
  3. AJMBLAZER

    AJMBLAZER Better to be lucky than good. Premium Member

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    A Dana 70 is about the equivilent to a Corporate 14 bolt full floater. Dana 80's are found under a lot of heavy duty cube trucks, 3 tons, stuff like that. Something you need a bigger axle than a 14 bolt for, but not a 5 ton Rockwell planetary for. Hope this helps.

    1992 Blazer Sport, 350 TBI, 4L60, 3" Gibson, K&N, 3" Rancho, 285/75R16 on 16x8 Baja's
     
  4. BlazerGuy

    BlazerGuy 3/4 ton status

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  5. James90

    James90 1/2 ton status

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    now where would I go to get a 5 ton rear end just thank a 5 ton blazer man I would need a hell of a tranny I want one HeHe

    [​IMG]Go prepared
    </font color=red>90 k5 soon to be big, bad, and mean
     
  6. BlazerGuy

    BlazerGuy 3/4 ton status

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    There was an article in FOURWHEELER awhile ago about the custom 5 ton rockwells. Man, they are huge!

    http://www.blazer.coloradok5.com is now under construction[​IMG]
    YEEEE HAWWWW[​IMG]
     
  7. titanic

    titanic 1/2 ton status

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    14 bolt,(GM), is close to a Dana 70,(1-ton Fords), Dana 80 come in some heavy duty Dodges and Dana even makes a 135, not sure but I believe it went with a commercial duty Dodge
     
  8. '73 K5

    '73 K5 1/2 ton status

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    Yea dude, you're right. Those Dana 135's are insane. 13.5 inch ring gear!! Imagine having a blown 502 on nitrous or something and NEVER having to worry about grenading the rear axle.

    '73 K5
    Chevy good...Ford bad
     
  9. laketex

    laketex 3/4 ton status

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    My father has a Dana 135 in his '99 F-550 Demo crane truck. It came factory with 4.56 gears and posi, damn thing is about maxed out going 65 down the highway, even with the 6 speed standard. But the low end grunt with that powerstroke will snap your head back and you'll row the gears quick to maintain. It's different and neat.

    Bryan

    [​IMG][​IMG]
    Durant, Ok
    '79 Blazer in progress
     

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