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    1990 Diesel Suburban Vibration

    I've just finished putting a rebuild NV3500 transmission in my 1990 3/4 ton 4x4 Suburban and I'm experiencing a bit of a vibration in a few instances. 1.) Above 60 MPH there is a bit of a vibration in the seat and rear floor. I'd almost describe it as a rumble. Think this could be u-joints or...
  2. L

    1990 Suburban Manual Transmission Swap Noise

    Back in October I bought myself a 1990 Diesel 2500 Suburban 4x4 which had a TH400 Automatic transmission in it. I've owned quite a few 6.2L diesel GM vehicles over the years and I can't stand the 3 speed auto behind it. I had owned another 2500 diesel suburban years ago that had a 700r4 behind...

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