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Old 02-22-2012, 07:26 AM   #1
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Possible Wheel Bearing Going Out

I have had my '99 Wrangler for about 4 months. Just recently I have started to notice a humming type noise, I think it sounds like it coming from the right rear wheel area. I am assuming that the wheel bearing is going out.
I have been reading as much as I can find concerning the procedure to replace this component.
Axle = D35c
My question:
Is the bearing pressed onto the axle or into the axle housing? I keep reading about the need to have a shop press to instal the bearing.
I understand how to remove the axle, I have a couple of step-by-steps for that portion.
I am scheduled to replace my dif fluid soon and figure I could do this at the same time.
Another question:
How do you tell if you need a new axle shaft?
Pics would be helpful.

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Old 02-22-2012, 07:35 AM   #2
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The bearing is pressed onto the axle shaft.
As for needing a new axle shaft just check the splines when you pull the shaft to see if any of them have a twist or bend to them

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Old 02-22-2012, 07:38 AM   #3
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So, is there a way to put the bearing on without the use of a press?
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Old 02-22-2012, 07:46 AM   #4
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I just replaced the bearings in mine a few months ago, they were in the axle housing not pressed on the axle.
I rented the slide hammer from autozone with the bearing puller and with a few whacks the old seal and bearing were out. Then I used the old bearing to tap the new bearing in place
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Old 02-22-2012, 07:48 AM   #5
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Also what I thought was a wheel bearing going bad was actually the carrier bearings gone bad
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Old 02-22-2012, 07:55 AM   #6
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What makes me suspect the wheel bearing is that I hear the noise only when I turn left at higher speeds, so in sweeping left turns and changing lanes fast or other instances when the forces are pushed to the right side.

I have a slide hammer that I bought when I was changing CV's on a FWD cadillac I used to own, so if that is all that is needed I think I can do it myself.

Is the carrier bearing the one that is in the dif case?
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Old 02-22-2012, 08:06 AM   #7
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You also need the bearing puller tool that would screw on to the end of the slide hammer.
Yes the carrier bearings are on what holds the ring and pinion
On the left and right of this picture
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Old 02-22-2012, 08:20 AM   #8
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I will look tonight, but I believe my slide hammer has all of the attachments possible.

When I open up the dif, how would I be able to tell if the carrier bearings are going out?

I guess I need to do a search on carrier bearings next.
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Old 02-22-2012, 09:15 AM   #9
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Mine were loose kind of like this
http://m.youtube.com/index?desktop_u...?v=ga5xKj-MSnU
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Old 02-22-2012, 03:12 PM   #10
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The bearings on the dana 35 are pressed into the axle housing. The dana 44 has the bearings pressed on the shaft. Since the dana 35 shaft rides on those bearings you may have worn bearing, a worn shaft or most likely both. You will be able to just look at the shaft and notice the groove marks or lack of grooves, but calipers or a micrometer will let you know for sure.
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Old 02-23-2012, 07:28 AM   #11
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I am wondering if I should go ahead and get a new axle before I tear into her, I really don't like doing things twice.
I really only hear the hum in sweeping left turns, the exit ramp from the tollroad to hwy 290 is the turn that sets it off.
I guess there is no way to tell until I pull it.
I will see if I can source some axles locally in the event that I do need to replace it and order bearings for both sides.
Any suggestions on brand of bearings and axles. I used to order all of my parts from rockauto.com, any comments on the bearings they sell?
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Old 02-23-2012, 07:53 AM   #12
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Rockauto is where I ordered mine had them on little over a year with no problems. I don't remember which ones I got exactly

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