Transfer Case Repair & Service in Addison, TX
If you own a 4WD or AWD automobile, your transfer case works to allot power between the front and rear axles. If something is amiss or faulty within the transfer case, you may experience grinding sounds, poor vehicle handling or even a complete loss of four-wheel drive.
Here, at Eagle Transmission and Auto Care of Addison, TX we are experts in transfer case diagnosis and repair. So whether your system refuses to operate, is creating bizarre sounds, or is leaking fluid that shouldn’t be there, we’ll determine the meaning of the trouble — and resolve it before long.
What Is a Transfer Case?
In 4WD and all-wheel-drive (AWD) vehicles, this component forms part of the drivetrain. It provides power from the transmission to both front and rear axles through driveshafts.
It also lets the vehicle move between two (2) and four (4) wheel drive– and sometimes will have reduction gearing for use in rough terrain or when towing a heavy load.
The transfer case is made up of gears, chains and bearings, which require the correct grease for their continued operation.
Common Signs of a Bad Transfer Case
- Not sure if your transfer case is the problem? Symptoms we commonly observe are as follows:
- Trouble engaging and disengaging from 2WD to 4WD
- Grinding or banging noise when driving
- Jitter or ratcheting when turn.
- Four wheel drive light is flashing or not turning on
- Center leaking transmission fluid
- Can't engage 4WD at all
If you are experiencing issues with your 4WD system, contrary to popular belief, it’s not always the transmission — and the transfer case is more often than not at fault.
What Causes Transfer Case Failure?
Reasons for the failing transfer case There are several causes of a transfer case that has gone bad:
- Dryness, or old, dirty fluid
- Normal wear and tear from off-roading or towing
- Broken chain or worn gears
- Failed actuator or control module
- Internal seal damage that results in loss of fluid
- Electronic connectivity faults of contemporary AWD systems
These problems may be more pronounced in drivetrains with synchronization between axles and such issues should not be ignored as they can lead to greater subsequent damage.
What We Do
At Eagle Transmission in Addison, we begin with: Comprehensive Diagnostic Evaluation
- Fluid level and condition inspection
- Manual and electronic mode tests
- Examination of links, sensors and actuation plants
- Road test to duplicate symptoms
- Housing and mounts were visually inspected
After we look and see, we may just do the following:
- Transfer case fluid change (both front and rear)
- Resealing to fix fluid leaks
- Replacing the insides (chain, gears, bearings)
- Rebuild if not replace transmission, transfer case full or rebuild.
We want to save you time and money with most transfer case services being done in-shop (you won’t have to pay dealership-like prices).
Transfer Case Fluid Service
Most transfer case issues are prevented with regular fluid changes. We advise replacing the fluid every 30,000 to 60,000 miles, or according to your vehicle’s manufacturer recommendations and based on how you use it.
If you frequently tow, do a lot of stop-and-go driving or 4WD use, your fluid may degrade more quickly.
We only put in OEM-approved fluids for your specific car, and we double-check the seal on your system after every service.


Vehicles We Service
We service many makes/models of 4WD/AWD including:
- Jeep, Toyota, Honda and Ford-model SUVs
- Pickup trucks such as Chevy Silverado, Ram and F-150
- Subaru, Mazda, and Hyundai crossovers
- Older 4x4s that offer a manual engagement on the transfer case.
- Later AWD’s with electronic controls
If you’re not sure if your car has a transfer case? Just ask us — we’ll explore it for you.
Why Choose Eagle Transmission Addison?
- Instructions/requirements: Certified technicians with experience in drivetrain systems
- Very straightforward diagnostics with no pressure to do work
- no one outside repairs or rebuilds
- Family-owned business, serving Addison and the surrounding areas
- Quick turnaround, good communication & warranty services!!!
We are proud to be one of the few local shops that truly knows how to service both mechanical and electronic transfer case systems.
Location and Hours
- Address: 16288 Midway Rd, Addison, TX 75001
- Phone: (972) 468-0600
- Website: https://addison.eagletransmission.com
- Google Maps: https://www.google.com/maps?q=Eagle+Transmission+Addison+TX
- Hours: Monday – Friday, 8:00 AM – 5:00 PM


