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Unread 08-26-2009, 01:11 PM   #21
03L4RUNNER
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Yes all vibes and humming problems are solved, not one thing wrong with the runner anymore,

Knock on Wood

The only part that was bad was the driver side bearing, It had almost no grease left and was brown and smelled pretty smokey and i also found little shards of metal inside where the bearing rollers are

I went ahead and replaced the passenger side while i was at it just to prevent anything else.

Hard to tell if it was water, sand, dirt, or grime that got to the bearing or maybe it was my 1.5" wheel adapters and 17x9 Pro-comps.

What ever it was its solved now!
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Unread 08-27-2009, 02:10 AM   #22
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Thanks for posting the details. It re-affirmed for me not to do this job myself.
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Unread 08-27-2009, 06:22 AM   #23
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Thanks for posting the pics. Reminds me of the work my Dad and used to do on our toyotas. Although we never did put any parts in the freezer and can't recall ever heating up the bearings. What are details around doing all that freezing and heating?
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Unread 08-27-2009, 06:45 AM   #24
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Rob,
The freezing and heating is to make an interference fit part fit easier. Freezing shrinks the metal and heating expands it so the two parts can slide together easy. Then when it cools it tight like a press fit.
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Unread 08-27-2009, 10:36 AM   #25
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I believe you can buy the whole hub assembly from Toyota (not sure on the cost though). But it might be less expensive than paying the labor to have just the bearings replaced at a shop.

In that case you should be able to just pull the hub off and put a new one on.
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Unread 12-16-2009, 09:44 PM   #26
crazydubman
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I used to do this frequently with my vws...

i would buy new parts, and install them. I still had the old but still usable parts (bearing excluded) sitting around for the next time the bearing went out. this way i can get all the pressing/assembling done before even tearing into the truck. this way you can make the actual job of installing the new parts easier and faster.
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Unread 01-28-2010, 09:17 AM   #27
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Was this a sealed bearing like a Tacoma uses? Yours is 4x4 so I would assume it is sealed...For the DIY person w/ a lot of experience, could you remove the knuckle and have a shop press out and in the bearing to save $$? Or is it not worth the effort. Your pics make it look rather easy other than the pressing in/out issue. Reason I asked was you mentioned repacking the bearing, If they are sealed how can you break them apart? If they're repackable, could a person repack them before they go bad? Thanks
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Unread 01-28-2010, 03:34 PM   #28
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The bearings are sealed and come already packed but i wanted to re pack them with a high quality grease, i just broke the new ones apart and washed out all of the grease then used a grease gun with a small needle on it to repack the new bearing, you do not have to repack them but i did because everything made in china is always sub par to my beliefs so i chose to pack them my self
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Unread 03-19-2010, 07:44 PM   #29
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Sorry to bring up an old thread but I will be attempting to do this or have someone else do it for me time permitting. Just one question, what are the consequences of driving with both bearings that have gone out. For instance, it seems and I have been told that both my bearings are extremely worn out but I have to drive my truck all over the place due to my job and just want to know if I keep driving it the way it is will I destroy something else?
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Unread 03-19-2010, 07:50 PM   #30
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If a bearing seizes, which is what wheel bearings typically do when they ultimately fail, the wheel will stop turning. Yes that will damage other things if it causes you to lose control of the truck and hit stuff
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Unread 03-19-2010, 10:46 PM   #31
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Yea I guess that would end up being bad. Well off to get them replaced sooner rather than later. Where is a good website to order the bearings and hubs? I've done some searching online but I'm completely lost. Where do you all order parts from?
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Unread 03-20-2010, 07:45 AM   #32
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If you aren't looking for OEM, I like these guys...

http://www.rockauto.com/catalog/x,ca...,parttype,1636

Always had good luck with their products on various vehicles over the years.
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Unread 03-20-2010, 08:03 AM   #33
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Quote:
Originally Posted by 03L4RUNNER View Post
BTW I'm a T4R.org convertee
+1....
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Unread 12-03-2011, 08:01 AM   #34
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Hi there. May I know how were you able to pin-point that it was the left? I have a 2005 4runner SR5 4X4 V8 180K miles and been hearing humming and vibration at 20 to 65 mph. It would go away whenever I turn left or changes lanes on a highway then would comeback as I straighten the steering. Thanks
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Unread 12-03-2011, 07:53 PM   #35
03L4RUNNER
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Takes both front wheels off, smell around the hub unit and if it smells smokey then thats your culprit.

You can try the 12 and 6 wiggle test but that does not always work on bearings like ours seeing that the CV axle keeps everything snug, (my wheels would not move side to side or up and down even though the bearing was bad)

back to your question, you are going to have to crawl under or at least remove the wheel to see if its the bearing, cant tell by just looking at it most times.

Tyler
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Unread 12-04-2011, 11:10 PM   #36
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Quote:
Originally Posted by 03L4RUNNER View Post
Takes both front wheels off, smell around the hub unit and if it smells smokey then thats your culprit.

You can try the 12 and 6 wiggle test but that does not always work on bearings like ours seeing that the CV axle keeps everything snug, (my wheels would not move side to side or up and down even though the bearing was bad)

back to your question, you are going to have to crawl under or at least remove the wheel to see if its the bearing, cant tell by just looking at it most times.

Tyler
I'd imagine that if you backed the CV axle nut off and then tried the 12 and 6 wiggle test, you'd then be able to detect a bad bearing.

Do you agree?
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Unread 12-04-2011, 11:17 PM   #37
03L4RUNNER
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Quote:
Originally Posted by KBL2004 View Post
I'd imagine that if you backed the CV axle nut off and then tried the 12 and 6 wiggle test, you'd then be able to detect a bad bearing.

Do you agree?
Agreed, but if you've got it that far then you will more than likely be able to tell which one is bad after loosening the axle nut and going ahead and removing the hub unit for visual inspection
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Unread 12-06-2011, 02:05 PM   #38
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Quote:
Originally Posted by Tamaraw View Post
Hi there. May I know how were you able to pin-point that it was the left? I have a 2005 4runner SR5 4X4 V8 180K miles and been hearing humming and vibration at 20 to 65 mph. It would go away whenever I turn left or changes lanes on a highway then would comeback as I straighten the steering. Thanks
I was under my rig, checking the brake pads. I pried the pads away from the rotors and pulled them out for inspection. Put a couple lug nuts back on, to keep the rotor from wobbling.

At this point, there is no drag between the rotors and the pads. When i rotated the hubs, I could easily hear and feel the bad bearings, on the passenger-side. Driver-side was silent, when rotated.
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Unread 12-11-2011, 11:19 PM   #39
tonedog
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Default Re: Humming

Hi,

I have a humming too. It happens between 50-80mph, when i am slightly accelerating almost coasing. foot off gas completely no hum, press to accelerate to pass no hum. The hum is not even sounding but more pulsing.

Is this the type of humming you guys are clearing up with wheel bearing replacement?

Best,
Tonedog
2007 limited v8 70k
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Unread 12-12-2011, 09:12 AM   #40
crazydubman
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Quote:
Originally Posted by tonedog View Post
Hi,

I have a humming too. It happens between 50-80mph, when i am slightly accelerating almost coasing. foot off gas completely no hum, press to accelerate to pass no hum. The hum is not even sounding but more pulsing.

Is this the type of humming you guys are clearing up with wheel bearing replacement?

Best,
Tonedog
2007 limited v8 70k
A wheel bearing should be noticable at all speeds and under all conditions. Similar to what noise you get from your tires. Being that the bearings at the hubs are at a constant speed it shouldn't matter what driving conditions are happening, for you to hear the noise.

I believe the noise you are hearing is your gears or diff bearings. Being that the noise is only at certain times with acceleration, the bearings and the gears are running under different loads during that time causing a little more noise than at others. I have the same thing going on. I don't think its really anything to worry about. at long as the noise doesn't get worse or increase in the frequency you hear it.

Maybe someone else can chime in as well to confirm.
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