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D70 or 14bff?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by blazen91, Apr 16, 2001.

  1. blazen91

    blazen91 1/2 ton status

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    On the duelly I bought, it has a d70 instead of a 14bff. It already has 4.56's which is the gears I want. Do you all think I should keep the d70 and put a Detroit in it at the cost of $550, or sell it and build a 14bff. It will be in a 90% trail rig. The other 10% will be my wife showing off that her Blazer will be tougher than mine!!

    <A target="_blank" HREF=http://www.blazen91.coloradok5.com>http://www.blazen91.coloradok5.com</A>
    Protect the land FOR the people
    Not FROM the people
     
  2. Triaged

    Triaged 1/2 ton status

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    I think I would go with a 14B FF just because parts would be easer to find.

    '71 Blazer CST with alot of rust
     
  3. UseYourBlinker

    UseYourBlinker 1 ton status

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    Second the 14bff

    [​IMG]
    <A target="_blank" HREF=http://community.webshots.com/user/vwryda>http://community.webshots.com/user/vwryda</A>
     
  4. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    By the time you buy a locker for the D70 and pay to have it installed (new r/p setup), you could buy a C14FF (with 4.56) and a locker (which you can install in your driveway). The strength is comparable and I don't think the D70 has any advantage over a C14FF. Hmm, do I remember the D70 having like 1/4-1/2" more clearance? Not sure...

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
    Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     
  5. blazen91

    blazen91 1/2 ton status

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    So how much do you all think I can sell the d70 for?

    <A target="_blank" HREF=http://www.blazen91.coloradok5.com>http://www.blazen91.coloradok5.com</A>
    Protect the land FOR the people
    Not FROM the people
     
  6. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Me, I have no idea what it's worth. I have never priced a D70. I would think it would easily cover the cost of a C14FF which can be found in 4.56 for $100-$400. You might even get enough to cover the cost of a Detroit Locker ($395??). I would call around to the local truck wrecking yards and act like you shopping for one. Get a few prices and then knock off about 20% (truck yards are almost always over priced IMHO).

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
    Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     
  7. Emmettology 101

    Emmettology 101 3/4 ton status

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    Depends on what you can sell it for.... If you can make money on it, then sell it and get a 14FF. If not, then Get a Detroit for the 70..

    Mike - <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>[​IMG]
     
  8. californiak5

    californiak5 1/2 ton status

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    Hey Mike,

    The only advantage I see to the D70 is that you can buy a ARB Locker for it. But if it is 95% trail rig a Detroit will do great for a lot less cash.

    See Ya,
    Keith

    [​IMG] <font color=green>Born to Drive My K5</font color=green> [​IMG]
     
  9. ken

    ken 1/2 ton status

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    That dually 70 is probably narrower than a single wheeled 70 or 14B FF. Measure it before you decide to use it.

    ken
     
  10. xtreme_wlr

    xtreme_wlr 1/2 ton status

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    I dont see how an ARB would be an advantage. In a rear axle you want as much strength as you can get. The Detroit is the best way to do that.

    Oh yeah, sell the 70 and get a 14 bolt.

    '78 Chevy 1 ton Stepside RockCrawler
    468 BB, SM465, NP205
    D60 front, GM 14Bolt rear w/ Detroit
    <A target="_blank" HREF=http://65.11.18.114>http://65.11.18.114</A>
     

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