If you think your rear bearings are going out?

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Thread: If you think your rear bearings are going out?

  1. #1
    Veteran Member 5 Speed's Avatar
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    Default If you think your rear bearings are going out?

    So you think you are hearing noises coming from your rear end and you think your rear wheel bearings are going out, here is what was making my noises and the story.
    I was traveling in North Dakota and a long way from anywhere when I started to hear a hissing / whirring /strange sound from my rear drivers side axle and it would change with speed. I of course thought something was seriously wrong and headed to the only Toyota dealer in 500 miles in Minot, ND. Well I told them what I heard and what I thought and they of course charged me a diagnostic fee to agree with what I thought and replaced my rear wheel bearings over the next 3 days. Well within 200 miles going back to Montana the sound came back and even started getting worse, I was freaking out and couldn't go back east, they didn't fix it! Well I really wanted to get back to Bozeman so I just went for it and made it back at 2AM. I have always done all my work myself but I knew that the bearings have to be pressed on and I didn't have any tools on the road. Well instead of going back to a dealer I took it to a local off road shop in Bozeman and he diagnosed the problem and to say the least the dealer didn't fix the problem and of course I paid for them fixing something that didn't need fixing. Sorry for the long story but be prepared, it might happen to you. It appears that either rust or dirt roads caused the backing place where the rear shoes are mounted at the bottom was pressing on the inside of my rear drums in a grove what appears to be a dirt / mud lip. If you look at the ring attached behind the plate, mine is rusted along the edges and all we can guess is the rust along with dirt and rocks helped press the plate inward ever so slightly, like 1/100 or so of an inch and along with heat caused the slight rubbing With the temp of the rear heating up while driving the plate would flex just enough rub on the inside of the drum dust lip and then stop when cool. Mike ground down the edge and I ground it down a little more to stop the noise and no, my bearings were not going out. I have included some picts of where to look.
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    Last edited by 5 Speed; 09-12-2010 at 06:12 PM.

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  3. #2
    Junior Member <TUNDRA>'s Avatar
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    Default Re: If you think your rear bearings are going out?

    Thanks for the post! This is something I will watch for.

    <TUNDRA>

    2004 Toyota Tundra AC SR5 4X4

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    Default Re: If you think your rear bearings are going out?

    Quote Originally Posted by 5 Speed View Post
    replaced my rear wheel bearings over the next 3 days.
    Did they have to order parts? It took my local dealer under 2 hrs. to do one of mine. I've replaced the inner axle seal a couple times in under 45 min.

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    Default Re: If you think your rear bearings are going out?

    They had no parts local, they get their parts from Colorado and they didn't arrive until noon the second day. They finished the instillation but didn't get the brakes re-bleed before they quit for the day which didn't make me really happy. They over-tightened the rear shoes and I discovered this a few miles out of town, took it back and had them re-adjust the rear shoes plus they didn't bleed the brakes worth anything. I just wanted to get out of there. Got some aquarium tubing and a bottle of fluid at wally world across the street and did it correctly.

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    Default Re: If you think your rear bearings are going out?

    damn those rednecks!
    All you Baja lovers check out: http://www.MasOlas.com


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    Default Re: If you think your rear bearings are going out?

    Heyyyyyyy.... a redneck would have been smart enough not to take a "city" boys advice on that there dad burn noise...........he would have looked for that noise outa curiosity...............unless you came in and said "I want my bearing changed" ..then , they would have still looked, and changed the bearing........and then wished they had $$$ to waste.......

    I dont know much about fertilizers for the yard, so when I go to get some ........I tell them what I want to do , what I have done, and where I am doing it.........They tell me what to use ( as they know what they are talking about ) I dont pretend to know about them at all.......
    I guess what I'm saying is with country people , dont go at them like you are smarter than them , there are "PROBABLY" alot of us that have had to figger things on our own........out in BFE.....and have run across issues like that before.

    as always my .02
    STATE OF CONFUSION

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    Default Re: If you think your rear bearings are going out?

    My brother called me the other day and wanted me to meet him because he has a loud screechig/ grinding noise coming from his rearend.(its a 96 4runner, but the same brake setup) This was a week after we worked on his elocker, so he thought it was something real bad and didnt want to drive it without me looking at it. I drove it and thought the same thing, I could even feel it in the seat. We had it towed to my house and I was going to pull the axles when I realized it was the same thing you had. It was a rust chunk that broke off the backing plate and was wedged between the drum and plate. I couldnt believe the noises it made!

    It just goes to show look at the simple things first, he got off cheap AAA covered the tow, but I bet Toyota doing your bearings wasnt cheap at all!
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    Default Re: If you think your rear bearings are going out?

    I'm glad I consulted this site before calling setting up an appointment at the shop.

    I drove around for a bit, and did a oil change on the rear differential. The only shavings I found from the old fluid were on the magnet, and was the consistancy of graphite. I did not see any thick silver flakes of any sort.

    I guess i'll go do some cleaning around the rear plate..

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    Default Re: If you think your rear bearings are going out?

    Great post. Good to know.
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    Default Re: If you think your rear bearings are going out?

    One thing I noticed is after the rear plate had rusted, driving on dirt roads filled the inner lip on the inside of the plate with very small sand / gravel and this was forcing the plate inward. I think a combination of the expansion with head and dirt roads combined with rust moved it in just enough. It was visible on the inside of the drum outer lip that very light contact was taking place, just didn't realize that was causing the sound.


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