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rear dana 60 in a k5?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1990K5, Jul 8, 2001.

  1. 1990K5

    1990K5 1/2 ton status

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    other than moving perches, what else would you have to do to get a ford dana 60 in a k5? just tring to expand my possibilities of finding a full floater axle w/ 4:56's already in it. thx j.c.
     
  2. CCRider

    CCRider 1/2 ton status

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    Was thinking the same thing so i can go to an air locker and get the pinion higher! Did you get my reply's to your shock questions?

    1991 Fullsize 5 1/2"lift, 37"ssr's,10Bolt8 lug , 14Bolt ff, 4:56 Detroit rear, 12"fr. 14"r Bilstein remote res.350 P.F.I , 700r4 , 241c W/ sye
     
  3. 1990K5

    1990K5 1/2 ton status

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    is the pinion higher on a 60 than a 14 bolt? i did'nt have a shock question, maybe your thinking of 90k5, im 1990k5
     
  4. Twiz

    Twiz 1/2 ton status

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    If the pinon is higher (I would think it is, by an inch or so) It is because the D60 does not have the pinion bearing suport like the FF14-bolts do. In order to put a nose bearing on the pinion gear- the pinion gear has to be lowerd in the houseing to clear the case bearing. So, on a D-60, to make up for the lack of the extra bearing, they made the space between the fron and rear bearings (on the pinion gear) further appart, so it would have the leverage advatage. On a FF14-bolt the front and back bearings are closer togather, because it has the 3rd nose bearing- so the pinion gear is shorter.

    What does all that mean? - I THINK it ends up to be -ALMOST-sixes. The FF14-bolt has a shorter pinion gear, so it would have a longer rear drive line. On the D60, it has a longer pinion gear, but it is higher. So It would probably end up to be the same, as far as the drive line angle- or close enuff to it. But the ARB putts the ball in the dana 60s court.

    Just for the record, I haven't looked at them side by side- But I know what I know. Hope it helps

    Twiztid - runnin' a 60 rear w/ARB.
     
  5. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>The ford rears are way too narrow (63 or 64" as oposed to the 69" fronts) for a K5, at least mine was. Also check to make sure it isnt 16 spline.</font color=blue>
     
  6. moneypit

    moneypit 1/2 ton status

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    I had my 60 made w/arb. Bolted right up no probs. I had 35spl. mosers put in it 3" wider than stock so my track is the same and disk brakes. I love it. Its just not as cheap as getting something fro, the bone yard. good luck.
     
  7. AZK5

    AZK5 1/2 ton status

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    Dodge put a bunch of 60's in their pickups. The spring perches are very close to the right spacing. I used a Dana 60 rear out of a 1985 Dodge pickup and just modified the spring perches a 1/4" on each side. You get a lot more ground clearance under a Dana 60, the pumpkin hangs down 1/4" further then a 12 bolt. I doubt I'll ever break my 35 spline floater Dana 60 so I can live without the extra strength of a 14 bolt.
    The next reply will be "but I can shave my 14 bolt", yeah and I can shave my Dana 60 and I'll still have more clearance.
    You'll save some money going with the 14 but you're not limited on gears and lockers with the 60.
    CB

    1973 K5, 400TPI,TH350, 203/205, Dana60/Detroit/5.38 front and rear, 4" lift, 38" TSL's on steel wheels
     
  8. 1990K5

    1990K5 1/2 ton status

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    hey azk5, how was the width? what model did your come out from under?
     
  9. Donovan

    Donovan 1/2 ton status

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    Remember almost all Dana 60 FF are 30 spline just like a Dana 44 but it is a full floater. AzK5 most be real lucky if he found a Dana 60 35 spline. Most times the spindles are to small to pass a 35 spline axle thru. The Bore on them is like 1.460" so a 1.500" axle would have a hard time going thru that spindle. I have looked a probably close to 100 Dana 60 axles and I have never seen a 35 spline Full Floating Dana 60. I have only found one axle that had a spindle large enough to get a 35 spline axle in. It was in a 3/4 ton ford truck, and I think it was a 1984 extended cab. If I was you go with the 14 bolt and shave the housing and you are good to go. Now if you want a semi floater axle definitely go with the Dana 60 but except to pay very good money for that.

    Donovan
    Bigger is Better
     
  10. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    Im pretty sure Burt4x4 has a GM 6lug sf D 60 with a power lock and 35 spline axles in the rear of his Blazer.Do a search on "Greenhorn R&P swap".

    <A target="_blank" HREF=http://community.webshots.com/user/beaterwhang>http://community.webshots.com/user/beaterwhang</A><P ID="edit"><FONT SIZE=-1>Edited by FRIZZLEFRY on 07/09/01 09:47 PM (server time).</FONT></P>
     
  11. Steve_87K5

    Steve_87K5 1/2 ton status

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    I've got a boneyard D60 FF in my K5. It has the 1-3/4" spindle nuts. PLEASE, if anyone knows a part number OR an application for
    the 1-3/4" lockwasher (with the bend over tabs, please let me know. I have looked everywhere with NO luck!

    Can/should I change over to the pin&hole type nut lock? Thanks

    SteveB
     
  12. AZK5

    AZK5 1/2 ton status

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    The rear Dana 60 I have came out of a D600 and no I don't know what that is. It was a 30 spline FF with a 1.46" whole through the spindle as Donovan said. Now it is a Moser 35 spline FF with a 1.52" whole through the spindle. I used a 1.5" drill bit to open up the spindles. If I did it again I would have just looked for a Dana 70 which comes with the 35 spline axles and live with the loss in ground clearance.

    FF rear Dana 60: $100
    Detroit: $460
    5.38 gears&kit: $300
    Moser 35 spline axles: $295
    Ass kickin gearing and ground clearance: Priceless[​IMG]

    CB



    1973 K5, 400TPI,TH350, 203/205, Dana60/Detroit/5.38 front and rear, 4" lift, 38" TSL's on steel wheels
     
  13. 1990K5

    1990K5 1/2 ton status

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    would it be worht swapping my 12bolt for a d60 if it is only 30 spline
     
  14. 1990K5

    1990K5 1/2 ton status

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    a six lug d60 ?!?!?!?!!! what doner vehichle can i look for?
     
  15. 1990K5

    1990K5 1/2 ton status

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    steve 87k5, i will look for the 1-3/4 bent tab lockwasher for you, if i find one ill ship it to ya. thx--j.c.
     
  16. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>1990K5- no vehicle came with a 6 lug dana 60, Burt's is custom made. His was originaly a full floating axle but he put 9" style housing ends and had Mark Williams racing custom make him some shafts. Late model E250 and E350 vans came with semifloating dana 60s and Moser or Dutchman can probably make you some 6 lug shafts for those.

    Thirty five spline Dana 60s are not hard to make. You can have a machine shop weld on 14 bolt housing ends, and use the 14 bolt hubs, then have 35 spline shafts made with the 14 bolt flange on them. The 14 bolt spindles are large enough to fit the 1.5" shafts without machining. Machining 30 spline spindles makes them weaker. The advantage to going with a dana 60 is the ability to use lower gears and the extra locker choices. If you wheel on big enough rocks where ground clearance is an issue, make a skidplate to go under the pumkin. The disadvantage is price. No dana 60 will bolt up under a K5, and for most people that means having a shop weld the perches and shock mounts on. These axles arent like 10 and 12 bolts where bashing them on rocks will damage them.</font color=blue>
     
  17. 1990K5

    1990K5 1/2 ton status

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    arnt the ford van diffs offset? to narrow? thx-j.c.
     
  18. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>I never measure the width but it looks close. The pinion output should be centered.</font color=blue>
     
  19. AZK5

    AZK5 1/2 ton status

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    Biggray71- I believe some of the 80's C20/25 Chevy trucks came with rear Dana 60's.

    1990K5 - A FF 30 spline Dana 60 is much stronger then a 12 bolt. The ring gear is 9.75" compared to 8.875" and the axles float which puts no static load on them and gives you the ability to drive home after breaking an axle.
    CB

    1973 K5, 400TPI,TH350, 203/205, Dana60/Detroit/5.38 front and rear, 4" lift, 38" TSL's on steel wheels
     
  20. 84_Chevy_K10

    84_Chevy_K10 Banned

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    No, those C20/25 trucks would have the 9.5" 14 bolt semi-floater.

    I would venture to guess that a D60 semi-floater is only slightly stronger than this 14 bolt semi-floater. They have a similar size ring gear 9.5" vs. 9.75" and the 14 bolt is a straight bolt in. I got mine for free, so I really can't complain.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     

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