Rear Humming at 65-70MPH

Discussion in '80-Series Tech' started by 410225, Oct 3, 2003.

  1. 410225

    410225

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    Sep 2, 2003
    Mine is 97 with factory diff lock. I am going to check on:
    1. Rotate tires to see if it makes difference.
    2. Squirt couple grease to xerk fittings
    3. See if exhaust tip angle change makes difference.

    I will let you know.
    Thanks.
     
  2. Beast II

    Beast II

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    Dec 23, 2002
    I had the same problem on mine after I put in the 2.5" lift. It only happened on long trips at 65mph+ and when I let off on the gas. Toyota thought it was the diff and replaced the pumpkin (on warranty). It turned out that it was due to the changed pinion angles; a set of upper Slee rear control arm extensions should alleviate the problem. I've not had the problem again since I installed them.

    Good Luck,

    Matt
     
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