I could really use some advice...
I installed my ToyTec 3" lift 2 weeks ago and I immediately noticed a vibration and droning noise at speeds between 38 and 42 MPH. This problem has been frustrating to diagnose so I'm putting my dilemma out in the forum in the hopes that someone can help.
The vibration is not a shudder by any means but it can be felt on the floor, the gas pedal and mildly in the steering wheel as a high frequency vibration. It is also heard as a droning noise that seems more pronounced on the passenger side. It is felt when accelerating or decelerating or coasting in neutral at about 38-42MPH. Above and below these speeds, the vibration and droning are either non existent or hardly noticeable. I will say that after a week now, I notice both the vibration and droning getting worse and am starting to notice it near 20MPH. Again, it rides smooth as glass and nice and quiet upon shifting into 4WD.
Thanks in advance!
I installed my ToyTec 3" lift 2 weeks ago and I immediately noticed a vibration and droning noise at speeds between 38 and 42 MPH. This problem has been frustrating to diagnose so I'm putting my dilemma out in the forum in the hopes that someone can help.
The vibration is not a shudder by any means but it can be felt on the floor, the gas pedal and mildly in the steering wheel as a high frequency vibration. It is also heard as a droning noise that seems more pronounced on the passenger side. It is felt when accelerating or decelerating or coasting in neutral at about 38-42MPH. Above and below these speeds, the vibration and droning are either non existent or hardly noticeable. I will say that after a week now, I notice both the vibration and droning getting worse and am starting to notice it near 20MPH. Again, it rides smooth as glass and nice and quiet upon shifting into 4WD.
1. I know that it is NOT the tires, the rims, or the rotors. I know this because the droning and vibration absolutely disappear upon shifting into 4WD and I had no issues when I rolled it into the garage, only when I rolled it back out after installation. No change with new BFG AT KO's or original Rugged Trails.
2. I also believe that it is NOT the Front end alignment because that was dialed in at the dealer immediately after the install... but my trust is in the dealership that it was done right and they reviewed the results with me, confirming the specs.
3. It's NOT the differential drop because I have the problem with or without the drop installed. The angles are not severe and the vibration is actually better without the drop installed.
4. We followed all of the installation instructions to the letter. We made no mistakes or removed any other components.
I'm going to a local garage next Friday and the mechanic felt that he could make a difference but he wants the truck all day. I'm not out to complain, rather I love the truck and the lift. I'm just looking for advice or information if anyone else has had this issue or helped resolve it. I just don't want to throw another $300 at this issue if the solution or adjustment is already known.2. I also believe that it is NOT the Front end alignment because that was dialed in at the dealer immediately after the install... but my trust is in the dealership that it was done right and they reviewed the results with me, confirming the specs.
3. It's NOT the differential drop because I have the problem with or without the drop installed. The angles are not severe and the vibration is actually better without the drop installed.
4. We followed all of the installation instructions to the letter. We made no mistakes or removed any other components.
Thanks in advance!