Manual transmission issue

Discussion in 'International Forum' started by EastHighwayMike, Jan 26, 2024.

  1. EastHighwayMike

    EastHighwayMike Bobtail Member

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    Jan 26, 2024
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    I have a 1999 International 4900. 5th and 6th gear truck shakes and can feel vibration in the shifter under load, when not under load feels smooth. As soon as I start to accelerate the shaking and vibration comes back?
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Not necessarily in the trans. Vibrations travel. Honestly, could be anywhere from the tires forward. No good way to guess without inspecting
     
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  4. Heavyd

    Heavyd Road Train Member

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    Start with a basic drive line inspection paying attention to u-joints, spinning caps and loose straps. Check your suspension and u-bolts to make sure you don't have an axle that is coming loose and pitching up excessively when torqued is applied.
     
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  5. DUNE-T

    DUNE-T Road Train Member

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    What engine? On n14 it can be even an injector issue. But yeah, it can be tires, wheels, driveshaft, bearings, whatever
     
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