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Brakes/Axles for a CJ3A

Discussion in 'Flat Fender Tech' started by TigerShark, Mar 30, 2006.

  1. Mar 30, 2006
    TigerShark

    TigerShark Sponsor

    St. Louis, MO
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    I decided to start trying to find where the brake fluid is leaking in the 3A today. It looks like a leaky wheel cylinder (big surprise :) ), so I pulled the tire off to get at the brake drum. I was surprised by a few things that I saw. First was the big chunk of break drum missing :shock:
    [​IMG]

    Iwas expecting to see the same set up as my ECJ's, but these have the brake drum mounted behind the axle flange...Is this normal? If so I assume they pull off the same way as an ECJ5? Or is this some whacked-out PO mod?
    [​IMG]

    Jim
     
    TigerShark, Mar 30, 2006
    #1
  2. Mar 30, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    interesting arrangement, I've heard of folks doing that, never seen one.
    PO probably cut the drum away from the hub (factory) and then realized he couldn't swage it back together; got longer studs and reinstalled it the way you see it. The only off set difference would be the thickness of the wheel hub.
    The hub will have to be pulled off the same way as you mentioned; be careful, who knows what might fall off when that hub comes loose
     
    jpflat2a, Mar 30, 2006
    #2
  3. Mar 30, 2006
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Jim, drum behind the flange is normal on earlier CJs, maybe a Model 41 axle thing.

    These drums had a slot that you could insert a feeler guage into to check the drum/shoe clearence, maybe thats what your "missing" piece is for-

    Hope you got a decent hub puller, you're gonna need it :(.

    H.
     
    Howard Eisenhauer, Mar 30, 2006
    #3
  4. Mar 30, 2006
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    That style of brake is the early "Lockheed" brake. Later ones have the drum on the outside similar to Bendix brakes. You'll find that style real common on Willys Wagons and Pickups. As already said, yer gonna need a hub puller. Nickmil.
     
    nickmil, Mar 30, 2006
    #4
  5. Mar 30, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Howard
    I've seen that arrangement on other Jeep models, but not CJs.
    My D41 in my own 2A wasn't that way.
    Interesting to learn new things just the same
     
    jpflat2a, Mar 30, 2006
    #5
  6. Mar 30, 2006
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Can't lay claim to ever having seen one myself, I'm going by Doc. Vern's info on his 2A's brakes, he goes (went :cry: ) into a bit of detail on'em.

    H.
     
    Howard Eisenhauer, Mar 30, 2006
    #6
  7. Mar 30, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    On the early 3A's and 2's I have seen them more that way than having the drum on the outside. I didn't have the drum on the outside of the 3 I have until I swapped them to 11" setups.

    Have puller - well used. Use a points file on the key and keyway a little at a time and eventually they fit like butter - don't want to think of how many times I pulled mine over the years :rofl:
     
    Warloch, Mar 30, 2006
    #7
  8. Mar 30, 2006
    TigerShark

    TigerShark Sponsor

    St. Louis, MO
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    I glad to hear this might be normal. Thanks for the link Howard, I'll be needing a puller :) So assuming I get them off, do they just go back on by tightening the nut?

    Thanks,

    Jim
     
    TigerShark, Mar 30, 2006
    #8
  9. Mar 30, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    Nut on Washer with Keyway in place... Critical to get it right, pay close attention when you take them off.
     
    Warloch, Mar 30, 2006
    #9
  10. Mar 31, 2006
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    What Warloch said. Plus, install the hub first then slide the key in the slot. If you don't there is a good chance the key will slide back in the keyway and when you tighten the nut down the key ramps up in the back and breaks the hub. Nickmil.
     
    nickmil, Mar 31, 2006
    #10
  11. Mar 31, 2006
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    Ya - when you've done it so many times, you forget to tell the rookie some steps :oops:
     
    Warloch, Mar 31, 2006
    #11
  12. Mar 31, 2006
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Yeah, I'm guilty of that too. Good to have that kind of knowledge though, isn't it?:) Nickmil
     
    nickmil, Mar 31, 2006
    #12
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