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Unread 08-13-2009, 10:36 PM   #1
JackStraw
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1999 WJ 
 
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hub bearing?

i think the hub bearings in my wife's '99 GC I6 2X4 might be going bad. about 2 months ago i put new firestone tires on her jeep, and they had a little more road noise than her previous set. however, the noise has gotten progressively louder over the last several weeks. it sounds like a howl, like she's got a set of buckshot mudders. the noise gets progressively louder as the speed increases. does this sound like the hub bearings? is there a good way to test to see if it is the hub bearing? if so how difficult a fix is it? any other ideas as to what it might be?

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Unread 08-13-2009, 10:39 PM   #2
99avant
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Does the noise change when turning at all?

The hubs are pretty easy to change. There was a great writeup on this board, a quick search would find it.
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Unread 08-13-2009, 10:45 PM   #3
gregmondro
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remove the brakes

then there are just 3 13mm 12pt studs holding it in. Pretty easy to replace. Just spray between them and the knuckle with pb blaster and then use a flathead screw driver or something similar to separate them
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Unread 08-13-2009, 11:04 PM   #4
JackStraw
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i havent heard the noise changing any when turning it, however my wife said today it sounded like the slow whomp of a helicopter blade when she turned one time, but that has only happened once. yeah i replaced the pads and rotors a few months ago, so i dont think this job will be too bad, hopefully not too many stuck nuts.
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Unread 08-13-2009, 11:06 PM   #5
99avant
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You sound like you are on the right track. At that mileage they are about done anyway. Just make sure to get quality replacements.

I just had to replace one that was less than 6 months old from autovalue.
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|99 WJ|4.7|242HD|Vari-lok|Upcountry+BB|DT8000|Dead as of 10/29/2009

If it aint broke, fix it till it is.
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Unread 08-14-2009, 06:39 AM   #6
JackStraw
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autozone has timken brand for 90.00 a side, but only has 1 year warranty. is there another brand yall would recommend.
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Unread 08-14-2009, 09:37 AM   #7
99avant
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Timken is good.

I also have had good luck with Napa parts, see what brand they carry
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|94 XJ|4.0|NP231|AW4|8.25 Trac Lock|Lotsa miles - SOLD
|99 WJ|4.7|242HD|Vari-lok|Upcountry+BB|DT8000|Dead as of 10/29/2009

If it aint broke, fix it till it is.
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Unread 08-14-2009, 01:56 PM   #8
longboy
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Timken is a good brand for bearings.
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Unread 08-15-2009, 06:58 AM   #9
JackStraw
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well, unless yall think it could be something else, i guess i'll be changing out the hub bearings monday or tuesday.
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Unread 08-15-2009, 07:48 AM   #10
ratmonkey
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don't forget the 36mm socket and a torque wrench that goes to 175ftlbs.
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Unread 08-16-2009, 09:03 PM   #11
JackStraw
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i assume the big hub nut, and the other 3 smaller nuts on the backside are regular threads, righty tighty, lefty loosey.
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Unread 08-16-2009, 09:06 PM   #12
99avant
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Yes, they are regular threads
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|94 XJ|4.0|NP231|AW4|8.25 Trac Lock|Lotsa miles - SOLD
|99 WJ|4.7|242HD|Vari-lok|Upcountry+BB|DT8000|Dead as of 10/29/2009

If it aint broke, fix it till it is.
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Unread 08-17-2009, 10:26 PM   #13
JackStraw
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got it knocked out tonight in a little over an hour. no stuck nuts on either side, easiest job ever done on a jeep. shop down the road wanted $521, took me $192 parts. jeep is much quieter now.
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