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2002 Mountaineer AWD rear wheel bearing replacement

Discussion in 'Stock 2002 - 2005 Explorers' started by phoenix12321, June 10, 2011.

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    1. phoenix12321

      phoenix12321 New Member

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      City, State:
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      Year and Model:
      2002 Mercury Mountaineer
      I have a 2002 Mountaineer v8 AWD. I have the rear passenger side wheel bearing humming like all heck and it needs to be replaced and I rather not spend $300+ at the auto repair shop. I went and bought the bearing for 67 bucks but have no idea how to go about putting it in. I heard that the bearing has to be press fitted into the hub. If anyone can give me some detailed instructions on how to remove the old bearing/hub and reinstall a new one. that would be fantastic!! Thanks in advance for all your advice!!

      Joe
       
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    3. Cozmik

      Cozmik Well-Known Member

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      Hey Joe. I just went through the same thing in my Ex. I ended up taking it to a shop and paying $100 for labor to get mine installed. They needed 2200 lbs of pressure on their press to get the old bearing out. There was no way that was coming out in my driveway. They also needed the press to install the new one. If you don't have the right tools I suggest biting the bullet and getting it done at a shop. The rear bearings in these trucks are not easy to tackle at home.

      If you do decide to do it on your own I wish you luck and let us know how it goes.
       
    4. stuartr

      stuartr Active Member

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    5. phoenix12321

      phoenix12321 New Member

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      Thanks for all the advice! I just really need to know how to get the assembly off so i can take it to a shop to have the bearing removed and re-pressed. Thats my biggest concern at the moment. Theres no way i could press a bearing at home!! Lol!!
       
    6. imp

      imp Well-Known Member

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      I happen to have done both rears in the past month, so it's fresh in my mind.....support the rear of the vehicle under the FRAME, each side, close to the rear suspension, be careful of the gas tank, very close to frame on RH side. ALL the weight needs to be off the wheels.

      Pull off the wheel where your doing the work. First, remove the disc brake caliper, and support it out of the way. The UPPER control arm, and the TOE control rod need to be removed, as well as the big axle shaft nut in the middle of the hub.

      Upper arm has a ball joint with STRAIGHT stud, retained by a cross-bolt which clamps the KNUCKLE about the ball joint stud. Remove the cross-bolt and nut, squirt some penetrating oil in there, the stud will be rusted in place. The wedged "V" of a small cold chisel driven into the "split" of the knuckle where it surrounds the ball joint stud will "spread" the hole open a bit, greatly simplifying loosening of the stud. Mine popped out by hammering on the BOTTOM edge, carefully, of the upper control arm. It's aluminum, don't get carried away. Toe rod, same story.

      Assuming you have removed the center (axle) nut, it's 36mm, need deep socket, you must force the axle spline loose of the spline within the hub....strongly suggest a puller-pusher type tool. I used the 3-lobed type which fits over 3 wheel studs, lugnuts to bear against, center bolt presses against axle shaft, pushes it loose in spline- you can rent this type of tool. Hammering on the axle shaft to loosen spline is STRONGLY discouraged! A bit of penetrating oil helps here too.

      The spring and shock attached to the LOWER control arm, will hold the arm in place. Remove the large bolt and nut at the underside of the arm which attaches the knuckle to the arm. You now simply pull the knuckle away from the suspension, while PUSHING the axle shaft back out of the splined hub....the hub comes away with the knuckle. The brake rotor can be removed any time, but early on, it removes weight from the knuckle if done first. Now you are ready to press the old bearing out of the hub, which separates the hub, leaving the OD of the bearing in the knuckle. The bearing itself then presses out of the knuckle from it's back side.

      Simple, huh? imp
       
    7. Echotwoniner

      Echotwoniner New Member

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      On my mountaineer awd the rear bearings involved taking the differential open and removing the axle if you have this type just save yourself a whole lot of trouble and go to an auto parts store and use a loaner axle pull kit and make use of the slide hammer no need for a press to get 200 lbs of force you can do this much force easily yourself with a little ingenuity and carefully tool placement.
       
    8. lincolnshibuya

      lincolnshibuya Active Member

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      the 2002-2005 is completely different, it's an IRS, the one you have is a solid axle.

      here's a video that clearly shows the process.

      https://www.youtube.com/watch?v=PfyqNoR02FQ
       

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