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Rear Differential Damage?

Discussion in 'Early CJ-5 and CJ-6 Tech' started by Ray Hogan, Aug 29, 2019.

  1. Aug 29, 2019
    Ray Hogan

    Ray Hogan Member

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    4A1124D0-4067-4986-9714-D52A166C751F.jpeg 6B28986B-9129-41A9-95CA-42B855E81C5A.jpeg I was crawling under my ‘63 today, looking and learning. Found the “25” on my front dif, yep, a Dana 25. Then scooted back to the driver’s side of the rear dif and saw this... looks like maybe heat or something? No sign of any lube leaking, maybe from the casting? Botched repair? Maybe not holed all the way through, hopefully? Ever seen anything like this? A concern? Thanks for looking! Ray in central Texas.
     
    cayenne likes this.
  2. Aug 29, 2019
    Oldriginal86

    Oldriginal86 Member

    Pasadena, Md.
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    I’m guessing it’s holding oil. Looks nice and clean in that area.
     
  3. Aug 29, 2019
    Ray Hogan

    Ray Hogan Member

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    Yes, no leakage there or anywhere else for that matter. I was hoping some knowledgeable person would say, “oh yeah, that was pretty common back in the day”, ha.
     
  4. Aug 30, 2019
    timgr

    timgr Jeepin' Nerd Sponsor 2019 Sponsor

    Medford Mass USA
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    Perhaps some PO attempted to mount something there? It's really hard to weld to cast iron, and a blobby failure seems possible.
     
  5. Aug 30, 2019
    Ray Hogan

    Ray Hogan Member

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    Well, after scrutinizing that spot, it’s probably an original casting flaw, that’s my opinion and I’m sticking to it, ha. It’s not a thru-in-thru hole, no lube leaking, just looks bad. My idea is to do a JBweld repair, smooth it out nice and pretty and paint/grease-it to match, ha.
     
    Rich M. likes this.
  6. Aug 30, 2019
    duffer

    duffer Rodent Power Sponsor 2019 Sponsor

    Bozeman, MT
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    I think those are just the remains of the casting sprues. Probably not touched since they left Dana.
     
    Thean likes this.
  7. Aug 30, 2019
    Ray Hogan

    Ray Hogan Member

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    I think you’re exactly right!
     

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