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LCA bolt torque specs stock vs lifted.

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Taco dv, Mar 2, 2025.

  1. Mar 2, 2025 at 2:24 PM
    #1
    Taco dv

    Taco dv [OP] Well-Known Member

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    The stock torque specs I’ve been seeing for the LCA bolts seem to be 103 ft lbs. I just installed the 2” TRD lift kit and in the instructions it calls for LCA front bolt 135 ft lbs, and rear LCA bolt 139 ft lbs. That’s a big difference from stock. Is this due to the 2” lift and more leverage on the LCA’s? Just want your guys opinion on this. I don’t want those bolts so tight that they restrict movement of the LCA.
     
  2. Mar 2, 2025 at 5:41 PM
    #2
    4x4junkie

    4x4junkie Well-Known Member

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    I see the TQ specs as 135 & 139 in the FSM, so I would say wherever you got the 103 figure from is wrong (or maybe that is a 2nd-gen spec).
     
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  3. Mar 2, 2025 at 6:30 PM
    #3
    airforceb2cc

    airforceb2cc Well-Known Member

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    The front nut is torqued to 135. The rear bolt is torqued to 139 to compensate for torquing the bolt and not the nut. The same clamping pressure is applied. I’ve never seen 103 in the FSM.
     
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  4. Mar 2, 2025 at 6:58 PM
    #4
    Taco dv

    Taco dv [OP] Well-Known Member

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    I did a quick search yesterday and most of the stuff I saw said 103 ft lbs. Could have been a different gen truck. I did 135 ft pounds per the TRD lift kit specs. I just loosened, then re-torqued the front most nut, and the rear most nut. I didn’t hold the other side because I didn’t see it spin, and the alignment marks never moved, even when loose and LCA dropped.

    Anyone have the FSM diagram for a stock 2020 TRD off-road?
     
  5. Mar 2, 2025 at 7:02 PM
    #5
    airforceb2cc

    airforceb2cc Well-Known Member

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    IMG_9369.jpg

    I was backwards. Bolt is 135. Nut is 139
     
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  6. Mar 2, 2025 at 7:06 PM
    #6
    Taco dv

    Taco dv [OP] Well-Known Member

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    Perfect! Thanks.
     
  7. Mar 2, 2025 at 7:10 PM
    #7
    Taco dv

    Taco dv [OP] Well-Known Member

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    One more question. I removed a 1 1/4” top hat spacer lift. Replaced with the TRD lift front shocks, basically 5100’s, the end result is about the same 2” of lift up front. I marked the alignment marks, and still have the marks lined up in the same position. Test drove truck and feels the same, drives straight, wheel straight etc. So assuming that I basically lifted the front by the same amount, 2”, is it still necessary to get it re-aligned?
     
  8. Mar 2, 2025 at 7:29 PM
    #8
    airforceb2cc

    airforceb2cc Well-Known Member

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    I would remove the cam bolts completely and grease them. Then get it aligned. It is probably close now but since you moved it, there is a chance it is a little off.
     
  9. Mar 2, 2025 at 8:31 PM
    #9
    Toycoma2021

    Toycoma2021 Well-Known Member

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    Always do an alignment after any suspension changes.

    Or if you have the OR rims, take measurements for the camber from them using an electronic angle gauge.
    The caster can be measured by removing the sway bar and placing an angle gauge on the flat the sway bar bolts to.
    Do both of these measurements before doing any suspension changes and make adjustments to return the angles to what they were if you want the same. If your changes mandate a change in alignment, go to an experienced 4x4 shop. Toe is up to you.
     
  10. Mar 3, 2025 at 12:05 AM
    #10
    StreetSr5

    StreetSr5 Well-Known Member

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    I would get it re aligned just incase, it could drive straight but something could be off and you wouldn’t want to wear your tires. And also I torque my lca to 150 lbs and don’t have any restricted movement issues. Mine is a 2wd though and I’m pretty sure the spec is 150 for 2wd models
     

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