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Front Diff Questions

Discussion in 'Technical Chat' started by dmblongo, Mar 9, 2010.

  1. Mar 9, 2010 at 8:37 PM
    #1
    dmblongo

    dmblongo [OP] Member

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    I know there are some posts regarding similar issues but I wanted to make sure my diff doesnt grenade while driving down the road.

    05 DBL Cab OR drove perfect until the installation of the 3" toytec last week (one piece DS, 3 degree shims, front diff drop) 65k miles. Ever since I have the common front diff hum (sounds harmonic to me) between 5-40 mph. As soon as 4x4 is engaged sound is gone and drives smooth as glass.

    My questions
    1. When spinning the Drivers side wheel you can hear the spyder gears clicking inside the front diff, passenger side is quiet.
    2. Is it still safe to drive without damaging the diff?
    3. How hard is it to change the drivers side bearing if needed? Pressed in? Diff removal?
    4. Is there any easy way to check the bearing other than play in the shaft? I know some play is normal could it be the clip on the end of the shaft?
    5. Does anyone have pics of the inside of the diff or the bearings that are good/bad?

    Thanks in advance!
     
  2. Mar 10, 2010 at 6:55 PM
    #2
    dmblongo

    dmblongo [OP] Member

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    Anyone?
     
  3. Mar 10, 2010 at 7:00 PM
    #3
    1TUFFTRD

    1TUFFTRD WTF

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    out and about building powerlines
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    06 AC with a skewp
    06 With a Skewp.
    some one will chime in...
     
  4. Mar 11, 2010 at 8:21 AM
    #4
    dmblongo

    dmblongo [OP] Member

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    Breakfast Bump...
     
  5. Mar 11, 2010 at 8:29 AM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    A harmonic hum is more than likely a bearing. Spider gears shouldn't be clicking. I think you might actually be hearing the bad bearing in the diff.
     
  6. Mar 11, 2010 at 8:30 AM
    #6
    RelentlessFab

    RelentlessFab Tacoma offroad armor fabricating beast Vendor

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    Had tons on the old Taco's.... new Tundra is pretty stock
    Look for a thread by Krookz. Iirc he had a similar problem with his truck and he figured it out. I think it was the seals maybe?
     
  7. Mar 11, 2010 at 9:59 AM
    #7
    dmblongo

    dmblongo [OP] Member

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    Thats what I'm afraid of. I have heard the drivers side is a PITA....have any feedback on that? :confused:

    I have been looking around but I can't seem to find anyone with pics or removal/install info either. It's not leaking anywhere so I didnt think it was a seal issue...stranger things have happened though.
     
  8. Mar 11, 2010 at 10:07 AM
    #8
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    I don't think there is a DIY for that on the board. Most get it addressed under the power train warranty. Toyota normally replaces the entire diff.
     
  9. Mar 11, 2010 at 10:10 AM
    #9
    dmblongo

    dmblongo [OP] Member

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    Well crap...that leaves us used owners with 65k out on the street. Hopefully someone comes up with something...

    Thanks for the help thus far..
     
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