If the GM vehicle has 4WD or AWD, it will definitely have a transfer case. Although GM builds its transfer cases to be sturdy parts, they can fail in the long run. In the event that the owner of the vehicle determines that the transfer case is no longer in working condition, it is time to replace the same. But the owner might have a few questions like- can the transfer case be replaced at home, how can the replacement transfer case process be completed, etc. This article has all the answers to such questions.

Finding the OEM transfer case at aftermarket pricing

Before commencing with the replacement transfer case process, an individual will need a new transfer case on hand. For the reasons mentioned below, OEM transfer cases offer much more value compared to aftermarket transfer cases for the reasons mentioned below:

  • OEM transfer cases are branded and, thus, last longer
  • All OEM GMC transfer cases come with at least a 3-year warranty

A general list of tools required to replace the transfer case

It is the model of the GM on which the set of tools required to replace the transfer case depends. The general list of tools required, regardless of the vehicle’s model:

  • Floor jack
  • Work light
  • Transmission jack
  • Jack stands
  • Box end wrenches
  • Socket set
  • Safety glasses
  • Latex gloves
  • Closed-toe shoes

A quick overview of replacing the transfer case

The process of replacing the transfer case differs slightly between different GM models. This is explained here is the process that one can follow to replace the transfer case at home:

  1. Lift the front of the automobile and then use the jack stands to prop it up.
  2. The transfer case is to be disconnected from the listed parts:
  • Front and rear driveshafts
  • Wiring harness
  • Vent hose
  • Speedometer cable
  • Shift lever linkage
  • Transmission adapter
  • Transfer case support membe
  1. Use the transmission jack to lower the transfer case and remove it.
  2. The new transfer case is to be installed in the reverse order of removal.

Important tips

Now that replacing the transfer case is a heavy part, the entire replacement process might take a couple of hours. Knowing exactly what to do and how to do it right is essential. Here are some tips that one can follow:

  • Use box end wrenches to remove the driveshafts.
  • Spray penetrating oil to remove all bolts and nuts
  • Put the jack stands on the jack points, not on the body of the vehicle.
  • Get the fluid for the new transfer case.


The transfer case is significant because it allows the power to be transferred from the vehicle’s transmission to both the front and rear axles. Now that a bad transfer case can result in poor functioning of the vehicle, it has to be replaced or rebuilt on time. To carry out the replacement transfer case process smoothly, one must have the necessary skills and tools. If a person lacks the same, it is advisable to contact a professional mechanic.