4×4 and AWD Transfer Case Repair

4×4 vehicles come in many shapes and sizes. One thing that most all wheel or 4×4 have in common is a transfer case. The transfer case component is designed to redirect the torque produced through the transmission to either the rear axle or both front and rear axle. One of the most common failures is damage to the mesh chain that is the primary means to redirect the torque.

Eagle Transmission is the reliable source for expert all wheel and 4×4 car or truck service. Call or stop by today. We will be glad to assist you with all of your 4×4, all wheel drive, and transfer case needs.

Read below for the top 4 things you need to know about 4×4 and AWD transfer case repair.

  1. The transfer case is what engages and controls the 4×4 and AWD systems. Rear wheel drive vehicles do not have a transfer case.
  2. The main components of a transfer case include encoder motor, input shaft, output shaft, chain, gear shaft, input gear, speedometer gear, front wheel gear, case and bearings. Transfer cases are also very complex and the first step to properly repairing them is properly diagnosing the problem.
    • Eagle Transmission Houston has seen a number of vehicles come in that wouldn’t move at all and everyone thought it was the transmission. In several instances, including a 2003 F250, it was just the encoder motor on the outside of the transfer case. This is a much cheaper repair and doesn’t require removing the transfer case.
  3. Some common complaints and/or symptoms include rattling or clacking noise, inability to shift into or out of 4WD/AWD or the system will shift into gear but pops back out.
    •  Again, don’t assume the worst case. Keep in mind there are also a lot of electronic components including the switch on your dash that contributes to it working properly.
    • Just like with a differential, noises can be  caused by a number of things including wheel bearings, u-joints, carrier bearing, etc.
  4. Get a complete diagnosis at no charge and then decide from there what you want to do.
    • The worst thing you can do in the beginning is assume the worst case and make guesses or buy into the guesses of someone over the phone, who, if they were being truly honest, would tell you they don’t know without seeing it. If they aren’t willing to be honest with you in the beginning, it won’t get any better later.

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