Is the transfer case you need for an AWD or a 4WD vehicle?

Although both systems essentially do the same, this is transferring the power from the engine to all four wheels of the vehicle. They do it in different ways and use different systems.

4WD (Four Wheel Drive)

4WD Systems are usually in off-roading trucks and SUVs. This is because 4WD is the superior traction system for the open road, especially in rough conditions.

These 4×4 vehicles work using a drivetrain with two differentials and a transfer case to provide the engine’s power to all four wheels. The biggest advantage to these systems is that the majority of them can be turned on or off manually, thus reducing the fuel consumption when the 4WD is deactivated. 

AWD (All Wheel Drive)

This system is sometimes confused with 4WD because both do basically the same thing with some key differences. 

In general AWD systems operate as either front-wheel drive or rear-wheel drive mainly, and come with a center differential which is a set of gears that distribute the power from the transmission to both the rear axle and the front axle.

This system is controlled and aided by sensors and a computer that detects when a wheel needs more or less power to maintain traction on the road and adjusts accordingly.

If you have an AWD vehicle you most likely need a center differential and not a transfer case. Hopefully now you know the difference between the two to save some time and money. 

How to know the symptoms of a bad transfer case and when to replace it?

Take away this piece of advice. If you begin to suspect that your transfer case is on it’s way out, do not wait to replace it. Because if it fails while you are driving, it can cause some serious damage to your transmission.

Some clues that might hint there is a problem with the transfer case are as follows:

• The gears in your transmission are not shifting properly or smoothly: Since the transfer case is connected to the transmission, a failure in your transfer case may make it difficult to shift.
• Your vehicle does not remain in 4WD: It’s a clear sign that something is wrong. Small parts inside it could be causing this.
• You see red stains of fluid underneath your vehicle: This could mean there is a leak or that the seals/gasket of your transmission’s transfer case is broken.
• You hear grinding noises underneath your vehicle: We know it could be many things but try to see if you can spot where the grinding noise is coming from in case it is the transfer case.
• Your check engine light or 4WD light turns on: This could be your computer detecting unusual high temperatures inside the transfer case, meaning you might have to replace it soon.

The most common reason for a transfer case to malfunction is the loss of transmission fluid through the seals on the output shaft that connects to the axles and gives power to the wheels. 

When there is not enough fluid the transfer case it will overheat and the components inside of it will get damaged, making it useless. You will then have to replace this component with a new one before it will cause more damage to other components like the transmission. 

What to look for when buying a transfer case?

The first thing you don’t want to waste time or money on is a brand new transfer case because these do not exist. New transfer cases are only found on brand new vehicles and manufacturers don’t sell or distribute new transfer cases.

Even if you have a warranty and go to the dealer, they will replace your car’s transfer case with a rebuilt, remanufactured or refurbished one.

If you are buying a rebuilt or used transfer case take all these factors into account before making a purchase: 

• This is one of the most important factors: Make sure you get a warranty that covers any malfunction or defects for at least 3 months. You will be sure that the transfer case you bought is completely good after the 2nd or 3rd month of you installing it. 
• Make sure to provide the VIN number of your vehicle while buying a transfer case. This will prevent unnecessary returns and save you money.
• Choose a reputable source or company to buy the transfer case from. Try to avoid dealing with individuals from Craigslist since these people probably won’t offer you a warranty (at least a lengthy one) or aid you in case the transfer case failed. 
• Finally, take customer service into account. If you buy it from a company with a good sales and customer service team, you can be sure that if something happens during delivery or if your used transfer case fails, you will receive fast and profession

Our recommendation:

If you want to save money, but also want all the benefits of a transfer case from a reputable company, buy it from My Auto Store. If you waited too long to replace your transfer case and your transmission is toast, you can browse quality used transmissions online now! If you need a used transfer case give their team a call and see if they have the auto part you need. 

My Auto Store is the best of both worlds when it comes to used auto parts. They have very affordable prices and products that have gone through a rigorous quality control process to ensure they are as reliable as a brand new transfer case. To show how confident they are with their process they offer a 6 Month Warranty. Don’t waste time and get a great quality transfer case and save money at the same time!