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  1. S

    No 4wd and grinding noises

    Lifted it yesterday. All wheels turning in 4Hi and 4Lo. Went to a gravel/paved parking lot. When first in 4Hi, nothing noticeable. Maybe minute later, it would bind when turning on the pavement. I believe all is working. So, thank you for the advice! I now need a rematch with the gravel hill...
  2. S

    No 4wd and grinding noises

    I am stopping and putting in neutral to get to 4wd low. Doing same to get out of 4wd low. I do not get any power out of front wheels. On a gravel hill, only back wheels spinning, nothing up front. I was in 4 lo and reverse and got stuck because front wheels were not helping. I want to jack up...
  3. S

    No 4wd and grinding noises

    Hello. I have a 94 GMC K1500, 5.7 L, 4L60. I have been trying to get 4WD to work. First, no light when floor shifted. Changed the actuator in the front differential/axle. Now I get the light. But 4Hi or 4Lo does not seem to engage the front axle still. Plus, 4Lo, when trying to get back to...
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