pump rub

  1. M

    241C Transfer Case Vibration WEIRD???

    1992 GMC K1500. 700r4. 6in Suspension Lift. I'm getting a vibration in my transfer case ONLY with the A/C switched on and even if I have the transfer case in neutral. Everything else seems to be working just fine. Mechanic thinks its probably the dreaded "pump rub". I guess my question at the...
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