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can't remove half shaft 2002 prius

Discussion in 'Generation 1 Prius Discussion' started by joetho, Nov 7, 2012.

  1. joetho

    joetho Junior Member

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    It doesn't want to come out of the transaxle. Any tips?
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    I haven't had to do this work yet. I understand that you should use either a slide hammer or a pry bar, to apply sufficient force to pop the half shaft out of the transaxle.

    I hope that you have drained the transaxle ATF prior to pulling the half shaft out.
     
  3. joetho

    joetho Junior Member

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    Yep, drained it out. I am an old hand at that part- I try to change it pretty regularly. Anything to extend the life of the ol transaxle (342,000 and counting...)

    I also discovered a failed wheel bearing (after like 20 or 30,000 miles, frown) that my machineshop guy tells me could be related to the failed halfshaft, so I am just trying to get the dang shaft out of the transaxle. Gently at first, being careful of the rubber seal in there.

    I am looking at the new shaft and there is a little compression "lock ring" on the end that needs to compress itself as I am pulling it out, right? Is this a pry job or a big hammer job?

    Any tips welcome. Thanks!
     
  4. bedrock8x

    bedrock8x Senior Member

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    Real big hammer, like a 2 pounder.

     
  5. edthefox5

    edthefox5 Senior Member

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    Don't worry about the seal. It requires new seal anyway after you remove halfshaft.
     
  6. jadziasman

    jadziasman Prius owner emeritus

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    What have you tried so far? Pulling the inner joint by hand?

    You will need a pry bar with a blade thin enough to fit in the space between the inner CV joint and the differential. The blade on the pry bar should be no less than 1 inch wide.

    For the Gen II Toyota recommends using a SST- special service tool (THE CLAW!!!) that functions about the same way.

    The axle should pop loose from the differential as you GENTLY and CAREFULLY pry the inner joint away from the differential. It shouldn't require too much force because the only resistance to the CV axle's removal is the snap ring you mentioned and the spline on the shaft end. Heaven forbid if the axle splines rusted somehow in the differential - that's highly unlikely since the transmission oil is circulating in that spot. But if you had a leaky seal and didn't know it - uh oh - then rust is a possibility and I'm not sure what you would need to do then.

    You might be lucky and not need to replace the seal but since you've already done so much work it would be wise to buy a brand new flexible seal.

    One friendly hint when reinstalling the half shaft. Do yourself a big favor and see if the matching female spline in the differential housing is split into two halves. If so, you should rotate the differential enough so that the two half splines are lined up vertically. You can rotate the differential by.......that's correct by rotating the differential. I don't exactly remember how I did it because this was seven years ago. Oh well. I think I rotated the flywheel to get the transmission to turn the differential. You probably won't be able to turn the differential from the axle side by turning the axle installed part way - I might be wrong.

    Anyway, if you try to install the cv axle with the differential spline halves horizontal you might have a big problem since gravity will interfere with your ability to seat the axle all the way back into the differential because one half of the spline at the top just won't get out of the way - I know - I found out the hard way and tried, tried, and tried again until I finally had the ah ha moment mentioned above. Luckily I didn't get outrageously upset and ruin the axle by using too much force - some have made this COSTLY mistake by using a big hammer and still not getting the axle all the way in - so don't do it.

    Good luck. Let us know if you were successful and what it took to release it.
     
  7. jadziasman

    jadziasman Prius owner emeritus

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    Don't use a hammer. The snap ring compresses easily as it moves out through a smaller diameter opening at the edge of the groove it fits into - the snap ring fits in a circular groove. A pry bar will do.
     
  8. joetho

    joetho Junior Member

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    Got it out! Various prybars, bent back the thin metal dustshield on the axle (ruining it, but big deal) which allowed a better
    "grip" as well as a better view of the seal. Seal was in great shape, let it stay. Parts store didn't have one anyway.

    Pry bar wasn't cutting it, so I rotated it (both wheels up, in neutral, easy) and just kept prying. Oem axle has this big metal thing you can tap on, and a light tap (and continuous prying around all sides) popped it out.

    I thought about grinding the insides out of a pickle fork to make it wide enough, which would have been my next step.
    Installation- open side of snap ring down, coat with trans fluid, work it in there gently, very light tap on the end seated it.

    Harbor freight might have a big enough pickle fork.

    Best move was having the new axle to examine first.

    This forum is excellent and so are all your timely tips! I hope this helps someone else as much as it did me!
     
  9. joetho

    joetho Junior Member

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    Oh yeah- I spent some time cleaning and examining the seal before I put the new axle in it. HINT: get a new one from the dealer as to plan this job- you can always take it back but if I could have done this (wasn't really an option and thank you God for a good old one) I would definitely have changed that too.