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  1. Cars100

    Syncronizer wear

    I have an highway truck running in India with the Eaton 9106 6 speed transmission. Recently I replaced the Navistar I4 engine with an rebuilt engine, with substantially higher torsional vibration. I measure old engine at 300 rad per sec2 vs new rebuilt at 900 rads. Everything works ok except...
  2. Cars100

    Transmission excites Vehicle NVH

    The final drive sun gear is splined to the diff side gears. The diff side gear is splined to the axle shafts. Are any common methods of introducing compliance into the hard splined joint, that could damp-out the excitation. The axle starts vibrating in third gear at about 30-35 mph...
  3. Cars100

    Transmission excites Vehicle NVH

    I have a new final drive gear set for a Front wheel drive transmission. The gears tolerances are well within print tolerances. Unfortunately, the gear is exciting the vehicle axle. Are there any other solutions than hanging weights on the axles (axle dampers).

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