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Thread: U-Joint expirement

  1. #1
    Wheeler
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    Nick
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    U-Joint expirement

    As any of you who wheel a Dana 30 or 44 on bigger than 35ís probably know, the 1310 series steering u-joint in your axle has it limitations. If your running a quality Spicer 760x joint, the first thing that usually happens is the cap spins in the yoke, walks the half circle c-clip off, and your cap starts coming out until it hits a ball joint stud and self destructs.
    That situation can be remedied by either clearancing your shafts to run full circle clips, or by welding your caps to the axle shaft. Iíve been doing that for a few years, and it will get you a long ways, but I was still pretty good at breaking them even with the caps welded in.
    Once itís impossible for the cap to come off, the next weak point is the needle rollers in the joint, under extreme load they quit rolling and start to fail, and once all your needle rollers are turned to dust the joint self destructs pretty quick after that.
    Nowadays there are plenty of aftermarket solutions, CTM, OX, Nitro Gear, Longfield, and RCV to name a few, all of which are far out of my price range
    Most of the aftermarket ďsuperĒ joints run a bronze bushing instead of needle rollers, so thatís the direction I went.
    I was able to find some oilite bushings with the right ID and OD to replace the needle rollers in a Spicer 760x



    Gutted all the rollers out of the caps



    I had an old joint I had previously robbed all the seals from, and I noticed you could get 0.1Ē more bronze in the cap without the seals, so Iím trying one sealed joint and one without seals



    Installed in some junkyard shafts with caps welded in for good measure



    Next week is Bronco Safari, so we will see how they hold up. Normally I get 2 days out of a stock 760x with welded caps, hopefully with bronze bushing it does a little better

  2. The Following 3 Users Like 3rd Petal's Post:

    CashMoney (4 Weeks Ago), Dennis (4 Weeks Ago), Teal-J (4 Weeks Ago)

  3. #2
    Wheeler
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    Jay
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    Interesting experiment. Awaiting the results, especially longevity reports of road driving

  4. #3
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    U-Joint expirement

    What are you running to only get 3 days out of a quality 760? When I was running a built D30 I used the Longfields with great success, enough to easily be cheaper than the amount of 760s youíre going through. I like your idea, but Iím guessing it wonít be any stronger. The caps on the joints you mentioned are a bushing to allow the cross itself to be larger. All this might do is help prevent the distortion of the needle bearings, but Iíd wonder about the suitability of this material in that application.

  5. #4
    Wheeler
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    I’m running a fullsize bronco on 37’s. I’ve got 5 more days of trails here in Moab, we will see what happens, so far so good though
    Last edited by 3rd Petal; 3 Weeks Ago at 07:48 PM.

  6. #5
    Wheeler
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    Held together for Moab, I’ll keep beating on them to see if I can break them. But so far they are doing pretty good

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