Tips to replace a 246 transfer case

Many people enjoy repairing and replacing parts of their vehicles as they find it therapeutic. It can be challenging to diagnose the cause of breakdowns. However, once done, the next step is to repair or replace. The 246 transfer case is one such part that is often enquired about by people who want to know more about its function.

What is a 246 transfer case?

The transfer case is responsible for transferring the torque from the transmission to the front and back axles. Different modes and ranges of operation are standard in transfer instances, depending on the traction or slippage at the wheels.

The 246 transfer case is compatible with a wide range of GMC and Chevrolet 4WD cars. The driver generally controls the various working modes of a transfer case. The oil pump grinds against the case on the original rear case, half on 246 units, producing pinholes in the fragile, thin magnesium shell. This happens so gradually that one may not notice it until the internal processes have been damaged. It’s called “Pump rub.”

Tips to replace 246 transfer case

The procedure for replacing the transfer case varies significantly across models. However, a generalized outline of how to change a transfer case is equally helpful.

  1. Lift the vehicle’s front end and secure it using jack stands.
  2. Disconnect the following pieces from the transfer case:
    1. Driveshafts at the front and back
    2. Wiring harnesses of any kind
    3. Cable for the speedometer (if present)
    4. Linkage for the shift lever (if present)
    5. hose for venting
    6. a case supporter who has been transferred
    7. Adapter for transmission
  1. With the transmission jack, lower the transfer case and then remove it.
  2. Install the new transfer case in the opposite order as the old one was removed.

It will take a few hours to replace the transfer case since it is a significant component. It’s critical to go into the situation knowing exactly what to do and how to execute it correctly, and tips can certainly come in handy.

  • Box end wrenches may be required to remove the driveshafts. Sockets aren’t always compatible.
  • Apply penetrating oil to all bolts and nuts that need to be removed.
  • A transmission jack can be rented or borrowed from an auto parts store. It is feasible to execute the task without a transmission jack with the assistance of a friend, but it is dangerous.
  • Make sure that jack stands are placed on the jack points and not the vehicle’s body. Even though this is self-evident, some individuals nevertheless do it.
  • To provide adequate room, you may need four jack stands, depending on the car.
  • Make sure to have a good supply of fresh fluid available for the new transfer case.


A 246 transfer case requires frequent oil or fluid changes; use the lubricant recommended by the manufacturer. Even though most transfer cases are trouble-free, they might acquire issues over time, and early intervention can save further wear and tear of other parts.

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