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Flanged 44 U-bolt size?

Discussion in 'Early CJ5 and CJ6 Tech' started by sparky, Sep 11, 2007.

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  1. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    I found references that the u-bolts for a flanged 44 are larger than the 2-piece axles but I don't know what size it is that I need.

    Bueller, Bueller, anyone?
     
    sparky, Sep 11, 2007
    #1
  2. Sep 11, 2007
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    both my flanged and unflanged measure 2 1/2" (just purchased u-bolts for the 6)
    Jim S.
     
    bkd, Sep 11, 2007
    #2
  3. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Hmm, I thought the tubes on the flanged were larger and what I read confirmed that where someone mentioned that with different U-bolts a flanged 44 can replace a 2-piece. :?
     
    sparky, Sep 11, 2007
    #3
  4. Sep 11, 2007
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    Hopefully I'm not leading you astray:rofl:, I'll check back on trhis thread later.
    The axle from the M38 is a flanged 44 I thought
    Jim S.
     
    bkd, Sep 11, 2007
    #4
  5. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Go check. :D
     
    sparky, Sep 11, 2007
    #5
  6. Sep 11, 2007
    dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Grand Mesa, CO
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    I just measured my '71 RII, and they're 2 & 3/4" DIA. This dimension is good from the differential out past both axle perches. The diameter gets larger right before the backing plates.
     
    dnb71R2, Sep 11, 2007
    #6
  7. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Thanks David, I guess I coulda measured that. With my luck lately though it was better to ask.
     
    sparky, Sep 11, 2007
    #7
  8. Sep 11, 2007
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    Checked mine with calipers, 2 3/4" by 7/16" u-bolts
     
    Mcruff, Sep 11, 2007
    #8
  9. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Thank you Mike!

    So now do I need new spring plates as well?
     
    Last edited: Sep 11, 2007
    sparky, Sep 11, 2007
    #9
  10. Sep 11, 2007
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    So what am I missing? I have a D44 full floater(warn lockouts installed) and it mearures 2 1/2"...or am I just confused?:oops:
    Jim S.
     
    bkd, Sep 11, 2007
    #10
  11. Sep 11, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    19 spline converted to FF not a 30 spline flanged unit?
     
    sparky, Sep 11, 2007
    #11
  12. Sep 11, 2007
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

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    Gotcha....I'll check it tomorrow....thanks
    Jim S.
     
    bkd, Sep 11, 2007
    #12
  13. Sep 12, 2007
    jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Oklahoma City, USA
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    Let me check my stash. Worst case scenario, you're only talking 1/8" on either side of the tube; might just be okay to oval out the holes a little.
     
    jayhawkclint, Sep 12, 2007
    #13
  14. Sep 12, 2007
    Txjake

    Txjake I wrenched with Sparky

    Oklahoma City OK
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    I will measure mine tonight, but it appears to have come with 1/2" bolts. axle tube OD is a bit bigger than my 27. FWIW, the replacement OMIX-ADA spring pads I bought were not big enough to accomodate either my original 1/2" bolts or the ones supplied with my BDS kit.
     
    Txjake, Sep 12, 2007
    #14
  15. Sep 12, 2007
    grannyscj

    grannyscj Headed to the Yukon

    Anchorage, AK
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    Mine were 7/16"x2 3/4" also. They were sprung outward at the thread end also. I just took a piece of leather wrapped around them and twisted to squeeze them enough to get them in the plates (at least the ones I couldn't squeeze by hand). I wouldn't alter the holes unless absolutely necessary. :v6:
     
    grannyscj, Sep 12, 2007
    #15
  16. Sep 12, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    I wondered, I've not see separate parts for them. Figured you could squeeze 'em down to fit.
     
    sparky, Sep 12, 2007
    #16
  17. Sep 12, 2007
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
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    had to rebend mine slightly (1/8-5/32") to fit when I installed the flanged axle.
     
    66cj5, Sep 12, 2007
    #17
  18. Sep 12, 2007
    linckeil

    linckeil Member

    Danbury CT
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    the flanged axle tubes are larger as stated. once i figured that out, i called the guy i bought the flanged axle from and luckily he still had the spring plates for it - which are obviously a wider spread than the tapered axle plates. i'd be incomfortable slotting out the holes in the spring plates from a tapered axle - unless maybe i welded additional material to them. i had a set of U bolts kicking around from a ford explorer 8.8" rear end that i used. almost a perfect fit. the explorer U bolts had to be pinched just a bit to work for me.
     
    linckeil, Sep 12, 2007
    #18
  19. Sep 12, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Dang, well guess there go my weekend plans. :(

    Thanks. :shock:ff to the classified section:
     
    sparky, Sep 12, 2007
    #19
  20. Sep 12, 2007
    Homebrew2

    Homebrew2 Member

    Dunlap, CA
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    Just confirming 10 spline 2-piece 44 tube is 2.5". Plate holes @ 7/16" ... noting that 1/2" u-bolts supplied w/ Rancho springs require plate holes to be drilled out to 1/2".
     
    Homebrew2, Sep 12, 2007
    #20
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