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1991 Suburban help

Discussion in 'The Garage' started by 78burb, Sep 7, 2006.

  1. 78burb

    78burb Registered Member

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    Specs 1991 Suburban 1/2 ton 5.7 auto 241.

    Good- Upshifts fine going all speeds can feel torque converter lock up.
    Bad- When letting off the gas and slow to about 50-55 there is a banging sound coming from what I think is the t-case but can't tell for sure.
    Anybody have an idea? Any help greatly appreciated. Thanks
     
  2. Pookster

    Pookster 1/2 ton status

    Joined:
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    Location:
    NYC, NY, USA
    Could be anything. Check the U-joints, take off the drive shaft, and check from there- Even if they appear ok, they could be damaged. Check the output shafts too, someties they develope wear.
     

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