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D60ff or 14ff??

Discussion in 'The Garage' started by BamBamblazer, Jun 14, 2003.

  1. BamBamblazer

    BamBamblazer 1/2 ton status

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    I really need some input on this one. I just bought a d60 and d44 combo for a hellofa deal. I am concidering just using the d60 instead of a 14ff(which i dont have). This is gunna be in a dd which will see weekend wheeling, nothing very heavy. The spring pearches on the d60 are at 40" inside edge to inside edge so that is good.(right?) I know that 14ff is a little stronger but i just figure since i have the 60, why not? Ok so i guess what it comes down to is would you just use the 60 or would you sell it and buy a 14ff?????????
     
  2. Bhintz

    Bhintz 1/2 ton status

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    I sell it and get the 14 bolt, just cause you sell the 60 for a couple hundred and pick up a 14 for a 100. little extra money for you, but the 60 has better ground clearence
     
  3. zakk

    zakk 1/2 ton status

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    any savings is lost as soon as you want to lock the rear.

    If you can't find a 14BFF for >$200, your not looking in the right places....you'll save at least that when your Deee-troit is only $300 as opposed to $550 for the D60 Deee-troit

    plus, there is a reason even Ford guys sling a 14BFF under their rigs
     
  4. TrcksR4ME

    TrcksR4ME 1/2 ton status

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    Like others said, depends on what upgrades you want to do to it. Not only is the detroit cheaper to install in a 14bff, you can probably do it yourself with out having to redo the entire differential. But if you are gonna keep it stock for a while I don't see any harm in using the dana 60, it should be plenty strong and hold up well. You don't have to run a 14bff just cause everyone else is. Of course I like mine... /forums/images/graemlins/grin.gif
     
  5. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    60 has better ground clearance, and u can gear lower than 5.13. Other than that, the ff14b is the better choice.

    j
     
  6. zakk

    zakk 1/2 ton status

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    [ QUOTE ]
    60 has better ground clearance, and u can gear lower than 5.13. Other than that, the ff14b is the better choice.

    j


    [/ QUOTE ]

    but why stop at a D60? A D70 would be a much better choice...
     
  7. SUBFAN

    SUBFAN 1/2 ton status

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    Other than the cheap Detroit for a 14, the 60 has more locker and gear options. I would be happy with a D60....
     
  8. bigblock44k5

    bigblock44k5 1/2 ton status

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    60 is a good choice if you have 38.5 inch tires or smaller for a weekend warrior. 14 bolt can handle 44's stock. like the other said it get expensive to build up a 60. so if your not going to put any money into a 60 or a 14 bolt might as well use what you already have.
     
  9. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    [ QUOTE ]
    A D70 would be a much better choice...

    [/ QUOTE ]
    Because he doesn't already have one.
     
  10. Suburbanite

    Suburbanite Registered Member

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    According to my "Chevy & GMC Pickup Performance Handbook" the 14BFF is rated for up to a 44" tire while the D60FF with 30 spline axles is rated for up to a 35" tire & D60FF with 35 spline axles is rated for up to 38"-44" tires. That's basically a quote. Don't ask me why the 35 spline version of the D60FF has a range of tire sizes bc I don't know & there wasn't an explanation given in the book. As a comparison the D70FF is also rated for up to a 44" tire.
     
  11. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    [ QUOTE ]
    but why stop at a D60? A D70 would be a much better choice...

    [/ QUOTE ]

    i guess because he didnt ask about a D70. /forums/images/graemlins/tongue.gif /forums/images/graemlins/wink.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/thumb.gif Personally, I think if you REALLY need the strength of a D70 and you are looking to run ratios lower than 5.13, you might as well just get rockwells.

    j
     
  12. Z3PR

    Z3PR Banned

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    Personally I like the 14 Bolt FF rear axle, but if you already have axles with matching gears, go ahead and use them. You could always swap it out at a later date if need be. Plus if you'd have too regear one of the axles to match the other, that'd be just another expence.
     
  13. zakk

    zakk 1/2 ton status

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    [ QUOTE ]
    [ QUOTE ]
    A D70 would be a much better choice...

    [/ QUOTE ]
    Because he doesn't already have one.

    [/ QUOTE ]

    he doesn't have a 14B either...
     
  14. JIMs70K25

    JIMs70K25 1/2 ton status

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    I think the 35 spline shafts are 1.5" while the 30 splines are 1.31".
     
  15. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    Zakk, True, (and thinking local, which might be a mistake) but FF14B and 30 spline FF D60s go for the ~$. The D70HD go for more. At least every time I try to buy one they do. I've said it before, and a lot of people on here disagree w/ me, but if you're running a D44 or 10B than the FF14B isn't worth the the ground clearance you give up because you are limited by tire size by the front. I'd go w/ a SF14B or a D60 if you are going to run an axle w. 5-297 (760) u-joints.
     
  16. BlazerGuy

    BlazerGuy 3/4 ton status

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    What size tires do you plan on running? /forums/images/graemlins/thinking.gif
     
  17. DesertDueler

    DesertDueler 1/2 ton status

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    You can buy a spool for a dana 60 for under 200 bucks /forums/images/graemlins/grin.gif

    Dan
     
  18. Sandman

    Sandman 3/4 ton status Author

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    I've seen rear 60's hold up to 44's for years. I say run it.
     
  19. 6.2Blazer

    6.2Blazer 1/2 ton status

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    I would think that the book saying you should only run 35's with a 30-spline 60FF is rather conservative. One guy in our club has been running one of these axles for years with 39.5 Swampers and a big block with no problems at all........it's not a show truck either!
     
  20. eldon519

    eldon519 1/2 ton status

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    I'd look around for a CUCV 14 bolt FF. 4.56 and a Detroit would be nice even if it would cost you a little bit extra.
     

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