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Has anyone DIYed their gears?

Discussion in 'Performance and Tuning' started by copmagnet82, Apr 8, 2025.

  1. Apr 8, 2025 at 6:53 PM
    #1
    copmagnet82

    copmagnet82 [OP] Member

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    It has been a struggle to find a shop in Chicagoland that I trust with installing gears. Has anyone DIYed it? Is it really that scary? I have done my share of wrenching, including rebuilding two transmissions, replacing the chain tensioner on the 5.7, and other things of that nature, so I am wondering if this is something I should try to tackle or should I ship out the parts to a shop on the West coast?
     
  2. Apr 8, 2025 at 7:01 PM
    #2
    CasperTheFriendlyTundra

    CasperTheFriendlyTundra New Member

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    Honestly, gears aren't horrible. They are part science and part art. Any old school mechanic should be able to do it.

    Oh, you'll need a dial indicator to do it.
     
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  3. Apr 10, 2025 at 4:41 AM
    #3
    Js18tundra

    Js18tundra New Member

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    They aren’t that bad, as stated above you will need a dial indicator for backlash, a beam type inch pound torque wrench for rotational force, micrometer for measuring shims. And obviously a press, 1/2 drive torque wrench.
     
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  4. Apr 10, 2025 at 4:44 AM
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    vtl

    vtl New Member

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    I.e. everything OP should already have after doing two transmissions.
     
  5. Apr 10, 2025 at 7:00 PM
    #5
    copmagnet82

    copmagnet82 [OP] Member

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    Correct. I have the tools. It's more that everyone says that you have to have a ton of experience doing them in order to get it done right. Also, some shops don't want to touch the job, so it makes me wonder, is it because it's that difficult, or is it because it takes forever to do it right and they would rather make their money doing "oil changes".
     
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  6. Apr 10, 2025 at 7:12 PM
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    Mdl

    Mdl Hey there...

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    JBA Longtubes, Snivs 2.0 SC pulley, ASP crank overdrive pulley 6.71 in, DD Full 3inch dual exhaust, IPT valve body, Airbox mod, 4.5inch intake, Denso 750, 450 Walbro, W/M injection, GM 95mm TB, SABM, Camburg UCA, Icon shocks, Speedmaster LSD, Motive 5.29 Gears, Mickey Thompson Baja Legend EXP 35's, solid Offroad engine mounts, DIY Traction Bars, Tuning by snivspeedshop.com
    I did mine and it went well along with a Speedmaster LSD.
    Some good info:
    https://www.tundras.com/threads/diy...ntial-regear-at-home-not-for-beginners.67185/

    The man...Zuk:

    http://gearinstalls.com/
     
  7. Apr 10, 2025 at 7:22 PM
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    centex

    centex New Member

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    To do them right it takes time.
     
  8. Apr 10, 2025 at 7:48 PM
    #8
    copmagnet82

    copmagnet82 [OP] Member

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    My '21 is not my daily, so I can take as long as I need to get it done. I don't care about speed. I care about getting it done right.
     
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  9. Apr 11, 2025 at 4:14 AM
    #9
    vtl

    vtl New Member

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    Latter. I did hypoid gears at home a few times, it is just taking your time, following a known procedure and checking your work, i.e. exactly what a typical "oil changes" place does not do. It is basically getting a good contact pattern and a proper backlash.
     
  10. Apr 11, 2025 at 6:45 AM
    #10
    JRS

    JRS New Member

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    @copmagnet82, keep this post somewhat updated. I'd like to see how it goes for you. Same story here. Likely doing gears this winter.

    FYI, ECGS offers a rebuilt front. You just return yours to them within a month. They don't offer it for the 10.5" because of shipping size and scarcity.
     
    copmagnet82[OP] likes this.

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