WRX STI rear bearing replacment

Discussion in 'DIY Instructables' started by Subelution, Sep 24, 2015.

  1. Subelution
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    Subelution Member

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    Hi subaru community I could not find a DIY on rear bearings with many pictures so I had an opportunity to replace mine on a 03 wrx but the same should apply from 02-07 wrx sti. You will need some way of pressing these things out I used a 12ton hydraulic press.

    Parts that you need are below. I purchased off Rockauto

    2003 SUBARU IMPREZA 2.0L H4 Turbocharged

    BECK/ARNLEY 0523678 (052-3678) Wheel Seal
    BECK/ARNLEY 0523677 (052-3677) Wheel Seal
    BECK/ARNLEY 0523700 (052-3700) Wheel Seal
    DURA INTERNATIONAL 29513248 (295-13248) Wheel Bearing

    Tools that will help:
    • Hydraulic Press
    • Bearing separator
    • O ring remover
    • Socket and old wheel bearing cases or you can use different size pipes
    Begin by removing the seals on the side facing the axle.
    20150924_142806.jpg


    Next you will press the hub out.
    20150924_143022.jpg

    When you remove the hub the Race will stay with it you will need a bearing separator to remove it 20150924_143948.jpg


    Next Remove to retaining clip to press the bearing out, usually you use C clip pliers but mine broke so I used two flat head screw drivers.
    20150924_144150.jpg

    Now you press the bearing out from the outside.
    20150924_144446.jpg


    Clean inspect the bore on the spindle where the bearings goes in. whip it down with a clean towel. Then press it in until it bottoms out. Used the old bearing casing it works perfect to press the new bearing on the outsides of the race.
    20150924_145850.jpg


    Now place the retaining clip back in if the retaining clip does not snap into groove you did not press bearing all the way down and put the front seal on (again I used the old bearing casing to evenly put int on.
    20150924_150209.jpg
    20150924_150451.jpg


    Next you press the hub back in. you have to support the back of the bearing inner race otherwise it will come out if you don't.
    20150924_150750.jpg

    Now just put the seals on the inner side of the bearing there are two.
    20150924_151200.jpg


    Your done. The hub should spin smooth but it will have slight stiffness until you wear the bearings in.
     
    Last edited: Sep 24, 2015

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