rear axle service photos

Discussion in '80-Series Tech' started by clownmidget, Feb 19, 2006.

  1. clownmidget

    clownmidget SILVER Star

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    these are primarily for Romer or anyone that would like to include any of these photos for the FAQ stuff.

    I had my rear third removed to re-gear and took the opportunity to rebuild the rear axle, put in some new brake pads, adjust the parking brake, and put new u-joints in the rear driveshaft.

    enjoy :beer:

    top: the parts and numbers from Dan :cheers:

    middle: wheel off, ready to remove caliper - two 17-mm bolts on the back side, the lower one a tight fit for a socket due to the lower shock mount.

    bottom: caliper off, sitting on top of axle housing. Should be secured with wire to ensure no stretching of the brake hose.
    parts_rear axle.JPG rear_start.JPG rear_caliper removed.JPG
    Last edited: Feb 19, 2006
  2. clownmidget

    clownmidget SILVER Star

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    next...

    Top: Two bolts to pop off the rotor. Note to the newbie - you can't have your parking brake on and remove the rotor :doh:

    Middle: brass hammer to strike the hub body to loosen the cone washers.

    Bottom: success! I noticed that the ones on the bottom tended to loosen from striking the top.
    rear_rotor removed.JPG rear_cone washer removal.JPG rear_cone washer loose.JPG
    Last edited: Feb 20, 2006
  3. clownmidget

    clownmidget SILVER Star

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    next...

    Top: all cone washers removed and axle loose, ready to be pulled out.

    Middle: using an impact driver to loosen the spindle nut lock screws

    Bottom: loosening the lock nut, I used the OTC SST.
    rear_axle loose.JPG rear_lock nut screws.JPG rear_lock nut loose.JPG
  4. clownmidget

    clownmidget SILVER Star

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    next...

    top: behind the lock ring is the thrust washer with the notch that sits in the groove on the top of the spindle.

    middle: popping out the axle oil seal that sits inside of the spindle.

    bottom: spindle cleaned and ready to start rebuild
    rear_thrust washer.JPG rear_axle seal removal.JPG rear_spindle clean.JPG
  5. clownmidget

    clownmidget SILVER Star

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    next...

    top: with the hub body off the spindle you can remove the bearings. to do the inners, you'll need to remove the inner seal.

    middle: once the bearings are out you can drive out the races using a brass drift placed in the two opposing notches in the hub housing.

    bottom: this is pretty much out of place but once you've got it all buttoned back up this is how I prep the rear caliper for the new pads.
    rear_inner bearings seal removal.JPG rear_bearings race removal.JPG rear_caliper compression.JPG
    Last edited: Feb 19, 2006
  6. clownmidget

    clownmidget SILVER Star

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    next...

    Once the bearings and races are out, it's no big deal from here to just clean everything up, drive in the new races, pack the new bearings with grease, and re-assemble using the new parts.

    Started the replacement of the u-joints on the rear driveshaft. I had the rear drive shaft off already in order to have the rear third setup with the new gears.

    top: oem u-joint from Dan :cheers: these are worth it in my opinion. the quality is just better and the cups are pre-packed w/grease.

    middle: start by removing the c-clips that sit on the inboard of the yokes. I use a mid-sized flat screwdrive that works great. One or two whacks and it lifts it just enough to insert the tip and flick it off.

    bottom: gap to start flicking
    ujoint oem part number.JPG driveshaft_ujoint clip.JPG driveshaft_ujoint clip removal.JPG
  7. clownmidget

    clownmidget SILVER Star

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    next...

    Once you have all four clips removed you can press out the cups. You can use a vise or just use your floor and a 5-lb sledge :hillbilly

    top: pressing out the cups. Bottom is 32-mm socket (from the s/c crank pulley) and top is a 7/8".

    middle: cups pressed out about half way

    bottom: another angle

    the idea is to press out the bottom one just enough to pull it out with some visegrips and not pushing out the top one all the way. It's no big deal if you do push out the top one all the way into the center of the yoke because you can just start it back in and drive it through, just a little more time and effort.
    ujoint_press out.JPG ujoint_cups pressed half.JPG ujoint cups half pressed.JPG
  8. clownmidget

    clownmidget SILVER Star

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    next...

    top: bottom cup has been pressed out, now flip and drive out the opposing cup. I used a big drift.

    middle: driving out opposing cup

    bottom: flange yoke portion. I remove the shaft cups first so it's easier to manage the flange yoke portion.
    ujoint top cup removed.JPG ujoint press out center.JPG ujoint yoke.JPG
  9. clownmidget

    clownmidget SILVER Star

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    next...

    top: removing the cups on the flange yoke.

    bottom: all the new parts

    Install is pretty straight forward. Just be sure to orient the spider so you can reach the grease fitting once it's assembled. Again, I start on the flange yoke by placing the spider in the yoke, then start the cups on each side. The same sockets let you press in the cups flush so the grooves for the c-clips are now visible on the inboard edge. Tap in the c-clips and you're done. Be sure to add grease once the shaft is back in place.
    ujoint yoke press out.JPG ujoint new.JPG
  10. Romer

    Romer fatherofdaughterofromer Moderator

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    Excellent write-up and now part of the FAQ. That's a perfect FAQ type thread. Thanks for contributing.

    Ken
  11. semlin

    semlin rocker SILVER Star

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    great photos/write up -- a question and a comment

    first - am i correct that the inner and outer oil seals on the rear are the same p/n's as the front oil seals? I ordered a rear repack kit a while back and I wondered why I had extras of the big ones at hand when I did my friend's front wheel bearings?

    second -- if this is to be a faq you might want to mention popping off the brake fluid reservoir lid before compressing the rear caliper like that.

    oh and definitely get toyota u-joints. my aftermarkets lasted only 18 months.

  12. clownmidget

    clownmidget SILVER Star

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    Hey Romer/Semlin, thanks and yeah, it should be clearly noted that I did not do a "complete" write-up!

    Definitely pop the cap for any brake work!

    A FSM or a Haynes at least should be on hand before proceeding.

    The front and rear seals are different. I'm not certain if you are asking about the small axle seals or the larger "oil" seals (as the FSM calls them) that are on the back of the hub holding the inner wheel bearings in place but they are all different. The big seals are almost identical though with the only difference that is apparent being a raised lip on the rear set that is not on the fronts. They are the same diameter, etc though.

    One section that I did not write about that requires the manual is re-installing the lock nut to the correct torque AND then lining up the hash marks on the lock nut pins to the hashes cut into the end of the spindle allowing you to sink the lock screws completely into the thrust washer in two of the threaded holes 180-deg apart. Bottom line, get a manual it makes lifer so much easier. :cheers:
  13. MoGas

    MoGas Central Scrutinizer SILVER Star

    Very nice write up.
    The only thing that I would do differently is to use the bleed screw to relieve the brake fluid when compressing the caliper. The fluid does not circulate through the brake system, it just moves back and forth a few inches, so the fluid in the caliper has been heated and is generally pretty nasty looking and I personally, don't like the idea of forcing "dirty" fluid backwards through the system and causing potential ABS issues. You may introduce a small amount of air into the caliper this way, but, after any brake job you should bleed the brakes out anyway.



    :cheers:
    Dave
  14. apcoleman

    apcoleman

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    Thanks for all of the pictures. I plan on getting this done once it warms up in the spring.
  15. concretejungle

    concretejungle SILVER Star

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    Great pics clown. Funny you posted those because i tried to replace the ujoints in my rear driveshaft this past weekend. I had no problems removing the c-clips, but i hammered and hammered and couldn't get the joint hammered out enough to get the cap off. :(
  16. desertdude

    desertdude SILVER Star

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    Awesome and timely write up Mike - I am about to do this in a few days and have collected all the new parts from Slee - including the U-joints - How did you know?

    One question ; is there anything else special that needs to be done to the lock ring once you reinstall? Any special preload?
  17. Rookie2

    Rookie2

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    Yep. It's all nicely spelled out in the FSM.
  18. desertdude

    desertdude SILVER Star

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    ah yeah ...I have tha manual and have the info - but thought it was good to post it here - and there is also screws on the lock ring - nice to include that too for folks who don't know :)
  19. snowwolf

    snowwolf

    Messages:
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    Location:
    Kent England
    Just like to add, it's far easier to use the socket/box spanner idea like you have done, but use a vice instead of the hammer, it's a more gentle and more forcefull, just like to say the photo's were great and will use your imput
  20. Tapage

    Tapage Club 4X4 Panamá SILVER Star

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    when you readjust and tight the hub nuts .. you measure teh torque or just at your felling .. ? :D

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