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Servicing Rear Wheel Bearings???

Discussion in 'Early CJ5 and CJ6 Tech' started by Buildflycrash, Aug 15, 2019.

  1. TIm E

    TIm E Aggressively average

    You really cant see or get to the spacer from the diff cover unless you pull the whole carrier out. Easiest to just look down the axle tube and verify they are in place. It looks like the pic below. One goes in from each side as oriented in the photo with the roll pin down through the center of them to keep them in place. You should just see the wide end looking down each axle tube.

     
  2. Glenn

    Glenn Kinda grumpy old man Staff Member

    Regarding the spacer, the one I'm familiar with is one piece and slotted in the middle. What Tim E. shows is interesting.
     
  3. Keys5a

    Keys5a Sponsor

    What prompted you to pull the axle apart? When you pulled the hub off, it came off too easy. It looks like it was loose on the taper, as I see rust on the taper and in the hub. The hub should have been quite tight on the taper, but yours was not tight, and was "working" causing the rust seen in your photo. I'm suprised the key was not sheared.
    You will need to clean and inspect both surfaces for proper fit when ready to re-assemble.
    -Donny
     
  4. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Because it's there.
    I'm restoring a Jeep and I figured checking the wheel bearings is part of that. I did notice that the nut was loose recently so I moved this up to the top of the list.
     
  5. TIm E

    TIm E Aggressively average

    The one I posted is for a Power Lok rear diff. If you have an open rear diff, there may be something different in there for a spacer. Tapered axles have a "floating" spacer so the two axle shafts can move side to side as one unit to set end play with shims. Later flanged axles dont use a spacer as end play is pre-set by the dimensions of the unit bearing and backing plate. To quote Forest Gump, that's all I know about that :D
     
  6. 3b a runnin

    3b a runnin Active Member 2023 Sponsor 2022 Sponsor

    Just curious, does anyone make a 1 piece axle, for what we know as the tapered 44?
     
  7. TIm E

    TIm E Aggressively average

    I did quite a bit of looking awhile back to no avail. They used to be available, but I dont believe anyone is making them anymore. A custom axle shop could likely make some, but I would think finding a complete later flanged axle would be a more cost effective solution.
     
  8. Muzikp

    Muzikp Active Member

    I'm not sure if I'm happy for you or upset that you didn't get the full experience of getting a hub off a tapered axle like I did. I'll try and be happy for you :D.
     
    Thean, Buildflycrash and fyrmn like this.
  9. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Got into it tonight. Driver side came apart easy but the seals are completely toast here. Passenger side I needed a puller for the hub and slide hammer for the axle. Seals and bearing cup are better on passenger side. Bearings seem okay both sides but I think I’ll just change out everything.

    Couple photos and questions.

    Inside axle tube driver side. Seems chewed up a bit compared to the passenger side. Is this going to be a problem? How big a problem? The bearing seems to seat down there well.
    Driver side...
    [​IMG]

    Passenger side
    [​IMG]

    I couldn’t get the brake line off as the nut is really close to the flange of the axle. I ended up cutting the line. Anyone grind the flange on the axle for clearance on the nut?
    [​IMG]
     
  10. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Here ya go. It was still pretty easy. Sorry.

    [​IMG]
     
  11. Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    I don't want to rain on your parade, But, I have never seen anyone pull a hub with a little puller like that. Those hubs usually take a larger puller and a big hammer to remove, and don't stand in front of it when hitting it, they are known to brake things when they fly off. You need to take a good look at the taper in both the hub and on the axel, maybe blue it and put it back on, and pull it back off to see that you have full contact in the tapper. If not you may have to emery cloth the axel and the hub until they make full contact. Your wheel could come off while driving. Good luck
     
    fhoehle likes this.
  12. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Thanks Rick. I’ll definitely look further into this. After You have good surface do you put grease (anti-seize) on the taper?
     
  13. Glenn

    Glenn Kinda grumpy old man Staff Member

    Not sure what you mean by bearing seems to seat down there well. The bearing shouldn't touch anything but the race. Main concern is if the race fits snug enough to not spin in the end of the housing.
     
  14. Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Inspect that hub very carefully for a crack. It definitely should not come off that easily and like Donny sez you should not have any rust on the taper area. Rust means there is a gap between the hub and the axle. If the hub is cracked it will continue to get looser as you drive which is what appears to be the case. Also no grease.
     
  15. Glenn

    Glenn Kinda grumpy old man Staff Member

    For the brake lines did you use a flare nut wrench?
     
    Lee Bennett likes this.
  16. Glenn

    Glenn Kinda grumpy old man Staff Member

    Buildflycrash likes this.
  17. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    I did. The line/nut is just to close to the flange of the axle tube to get the wrench on it.

    So I guess I didn’t use the correct wrench. I used the cutters. :oops:
     
    Glenn likes this.
  18. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    A crack? Like this?
    I guess I’m ordering new hubs as well. :steamed:


    [​IMG]
     
  19. Keys5a

    Keys5a Sponsor

    Your wheel cylinder is probably an aftermarket piece. The original had the line come in more to the side (right and left) rather than angled to the bottom.
    -Donny
     
  20. Glenn

    Glenn Kinda grumpy old man Staff Member

    Yep. That's when the installer gets lucky since tightening it is simple compared to removing it.