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Dana 70 options

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by SuperUnknown, Feb 10, 2002.

  1. SuperUnknown

    SuperUnknown 1/2 ton status

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    I just opened up the diff of the dana 70 rear axle I was planning on useing for my project. I found that the ring and pinion gears have several large nicks in them.

    What are my options? Should I re-gear, or just scrap the whole thing and get another axle. Maybe a 60 or 14 bolt.



    It's ok to love your truck.
     
  2. Triaged

    Triaged 1/2 ton status

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    I would sell the 70 and buy a 14B FF. They are cheep, almost a direct bolt in, and detroits for them are about $200 cheeper than any other axle.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  3. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    The decision on wether to keep or scrap really depends on what gear ratio you ultimately want to run. The 14 bolt is limited to a 5.13 while the D70 can take up to a 7.17.

    From a money stand point, you do already own the D70 but, as previously stated, the D70 locker is considerably more expensive. The gear prices are reasonably close.

    I've had a 14 bolt in my truck for about 14 years so I'm not knocking it, it's been a great axle but now I'm planning to swap in a D70 so I can go with more gear.


    80 K10 w/ 468 and 1 ton stuff
    You don't scare me, I got chunks of guy's like you in my stool!
    www.nvrenuf.fws1.com
     
  4. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    The decision on wether to keep or scrap really depends on what gear ratio you ultimately want to run. The 14 bolt is limited to a 5.13 while the D70 can take up to a 7.17.

    From a money stand point, you do already own the D70 but, as previously stated, the D70 locker is considerably more expensive. The gear prices are reasonably close.

    I've had a 14 bolt in my truck for about 14 years so I'm not knocking it, it's been a great axle but now I'm planning to swap in a D70 so I can go with more gear.


    80 K10 w/ 468 and 1 ton stuff
    You don't scare me, I got chunks of guy's like you in my stool!
    www.nvrenuf.fws1.com
     
  5. CaptCrunch

    CaptCrunch 1/2 ton status

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    Well if you are thinking of scrapping it let me know. I wouldn't mind a D70 for the right price. You gain a bit of ground clearence, but loose cash cause you have to cut the perches and shoick mounts to fit. Also setting up the R&amp;P would be costly.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  6. bigredblazer

    bigredblazer 1/2 ton status

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    In stead of using a Detroit, I would use a ARB, that is another advantage of the 70. Cutting brakes anyone?

    Blazin' Trails ORD Style
     

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