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shifting hard

Discussion in 'Trucks and Trailers' started by 1stclasslawns, Feb 14, 2004.

  1. 1stclasslawns

    1stclasslawns LawnSite Senior Member
    Messages: 565

    I have a 97 K3500 4x4 crew cab with 5.7 vortec and automatic tranny,

    I have noticed in the last few days it is shifting vary hard into high gear, I am not sure if it is at torque converter lockup, or 3rd gear to 4th. Depending on acceleration it is between 38 and 50 mph.

    Any ideas?

    Thanks Jim
  2. BW4486

    BW4486 LawnSite Member
    Messages: 243

    check trans fluid first / it could be as simple as that

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