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Torque Values At Lower Ball Joint & Steering Knuckle

Discussion in '1st Gen. Tacomas (1995-2004)' started by FowlTaco, Nov 4, 2008.

  1. Nov 4, 2008 at 5:57 PM
    #1
    FowlTaco

    FowlTaco [OP] Member

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    Hey All!

    Having a problem here torquing the 4 bolts at the lower ball joint to the steering knuckle.

    2001 Prerunner.

    The FSM calls for 59ft lbs in at least 3 different places in the manual.
    But at those values I've already snapped one bolt and feels like the same will happen w/the others if I continue.

    I've tried 2 different torque wrenches but they both are identical in torque values in everything I've tested so far.

    So the question is:
    Are these the correct torquing values? It seems a lot for a 10mm diameter bolt.

    Anyone w/experience w/this?

    Thanks!
    -Royce
     
  2. Nov 4, 2008 at 6:04 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Welcome to Tacoma WOrld!!
    Are you sure the value isnt in inch - lbs.?
     
  3. Nov 4, 2008 at 6:09 PM
    #3
    FowlTaco

    FowlTaco [OP] Member

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    Thanks!

    Well, if it were inch pounds, that would be roughly 5ft lbs.
    I was thinking maybe 30lbs max.

    -Royce
     
  4. Nov 4, 2008 at 6:25 PM
    #4
    SRFIVE

    SRFIVE Well-Known Member

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    Upstate NY
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    Don't know what the problem is, but a couple things to note: When you never seize bolts, you are actually applying a lot more torque then if the thread were dry. Are the bolts new? Rusted near the head? What grade hardware? A 10mm bolt in grade 8.8 will lift ~3600 lbs, but a grade 12.9 will lift ~12,200, (believe it or not they are strong suckers in tension). I just changed my lower ball joints and used the stock Toyota bolts, I had at least 60 ft.-lbs on them without a problem...but the truck is only 4 years old too (maybe less rust?).
     
  5. Nov 4, 2008 at 6:34 PM
    #5
    FowlTaco

    FowlTaco [OP] Member

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    Appears to be an 11T w/1.25 pitch which would max at 64lbs.
    Used.
    Added just a bit of oil because of light corrosion along the length of bolt.
    Maybe should have left them dry!?
    Never really had a problem w/this before.
    They will click at 40, but any more feels as if they will snap or strip.

    -Royce
     
  6. Nov 4, 2008 at 6:36 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I think you should use new bolts. Trying to re torque old bolts, I have been told is a bad idea.
     
  7. Nov 4, 2008 at 6:37 PM
    #7
    LonghornTaco

    LonghornTaco Can you pass the bailout please?

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    Um, I torqued down the bottom nut attaching the ball joint of the TC UCAs to the knuckle to between 80-100 #s. Too much?? :eek:
     
  8. Nov 4, 2008 at 6:40 PM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Nope. Specs are 100 ft.-lbs.

    I torqued mine to about 85# and 1 Grrrrrr...
     
  9. Nov 4, 2008 at 6:43 PM
    #9
    FowlTaco

    FowlTaco [OP] Member

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    Upper ball joint 80lbs.
    Lower 103lbs.
    PreRunner and 4WD.

    -Royce
     
  10. Nov 4, 2008 at 6:43 PM
    #10
    LonghornTaco

    LonghornTaco Can you pass the bailout please?

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    Good! I thought that was the spec... Was about to start worrying about snapping off the bolt.......
     
  11. Nov 4, 2008 at 6:50 PM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    For stock, yes. Jason and I have TC UCA's. :)

    And I belive those values are for the first gens?
     
  12. Nov 4, 2008 at 6:54 PM
    #12
    FowlTaco

    FowlTaco [OP] Member

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    Ahh! Overlooked that!

    -Royce
     
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