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Where to buy new diff

Discussion in '1st Gen Tundras (2000-2006)' started by Pucks18, Feb 14, 2020.

  1. Feb 14, 2020 at 7:47 AM
    #1
    Pucks18

    Pucks18 [OP] Panic mode

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    Hello. My rear diff pinion bearing is whinning. Eventually sometime in the future i need to replace it, but i think itd be smarter and more cost effective to but a whole new rear diff. Does anyone know where i can actually buy a new rear diff? I would rather get a new one other then a used one, but i guess used is fine. 2001 tundra 4x4 4.7l v8
     
  2. Feb 14, 2020 at 7:54 AM
    #2
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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  3. Feb 14, 2020 at 8:03 AM
    #3
    speedtre

    speedtre New Member

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    https://eastcoastgearsupply.com/c-1065069-assembled-3rds-clamshells-99-06-tundra.html
     
    02goes and revtune like this.
  4. Feb 14, 2020 at 8:58 AM
    #4
    PCJ

    PCJ New Member

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    Your best bet is to buy a new or rebuilt unit or have yours rebuilt. Buying a used unit could put you right back in the same predicament fairly quick.
     
    02goes, revtune and speedtre like this.
  5. Feb 15, 2020 at 10:22 AM
    #5
    noahrexion

    noahrexion New Member

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    It is so much cheaper to replace a bearing and keep your diff.

    Also it is VERY WISE to make sure you know which bearing is bad. Very common for shade tree's AND shops to misdiagnose a diff when the issue is actually a rear wheel/axle bearing.

    Mind if I ask how you diagnosed the rear pinion bearing? What are your symptoms?
     
  6. Feb 15, 2020 at 1:24 PM
    #6
    02goes

    02goes New Member

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  7. Feb 16, 2020 at 5:33 AM
    #7
    Pucks18

    Pucks18 [OP] Panic mode

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    @noahrexion . Thank you for the reply man! Yes my trustworthy (to me) mechanic said it was my pinion bearing in my diff. My symptoms were a medium to high pitched humming noise, only under light throttle, at certain speeds. Very annoying problem. And it goes away completely when i let go of the throttle or push into it more. He said the insides of the bearings coating start to just wear out which makes the noise, he also said its possibly for it to go another 100k+ miles as hes seen them go that long while making noise before. He basically told me not to worry about it and to start saving lol
     
  8. Feb 17, 2020 at 5:57 AM
    #8
    Pucks18

    Pucks18 [OP] Panic mode

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    @02goes Was thinking about it. How the hell do i put a new diff in? Would i need to buy a whole new axle? Cause i mean theres no way to just take the whole diff out. Thanks
     
  9. Feb 17, 2020 at 8:16 AM
    #9
    02goes

    02goes New Member

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    Having a rebuilt clamshell diff from East Coast Gears (https://eastcoastgearsupply.com/i-788575-tacoma-8-4-non-eld-t100-tundra-3rd.html), Toyota dealership or a local shop that knows rear-end rebuild is an easy job for you to reinstall. There's no measuring anything! Just torque the bolts when putting everything back together. However it might be cheaper to leave the trk at a local rear end rebuild shop than to have a rebuild sent to you. For more involved mechanical jobs one should use a Toyota repair manual for reference (https://www.summitracing.com/parts/bsk-10423/make/toyota/year/2000/model/tundra). Can't go wrong with it as that book is the final word of getting it done right. A good investment if your keeping the trk and plan to do just about everything yourself.

    Back out the axles, remove the driveshaft and then remove the diff clamshell. And that's it, no more unbolting anything. Install the rebuilt clamshell, install the axles and driveshaft. If I'm wrong someone should help you by stating what they know.

    These should give you a good idea of how simple it is to remove the diff.
    https://www.youtube.com/watch?v=EgNmy7vZqPY
    https://www.youtube.com/watch?v=USqs3EcM4_U

    Here are some links from the pro's here that know what their doing and passed along the knowledge, but remember the links are for rebuilding the diff yourself and not acquiring a rebuilt unit for install.

    https://eastcoastgearsupply.com/i-788575-tacoma-8-4-non-eld-t100-tundra-3rd.html

    http://www.gearinstalls.com/Kazumatyson.htm

    http://www.proactivate.com/tundra/lsd.html
     
    Last edited: Feb 17, 2020
  10. Feb 17, 2020 at 2:04 PM
    #10
    02goes

    02goes New Member

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    @Pucks18. Why did you start this thread when you posted a similar thread about this several days ago?
     

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