Hi I have a 1998 gmc sierra k1500 z71 I recently put it into 4 hi due to the winter and when I get on the gas it pulls to the right and when its in 2 wheel drive it doesn't pull at al when im on the gas is this a big problem or maybe a tire alignment?
tranfercase problem maybe? help please
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Molson02536
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Check your front differential locking actuator. From what you described, it sounds like you only have one side of your front end getting power from the engine.
Its common for the actuator to fail from a corroded wire harness, start with that before replacing the actuator.
Keep us posted and stay safe.
Molson02536