Transfer case sealing Kit (SEC, LX)

Common signs include red or brown fluid spots on your driveway directly under the center of the vehicle, a burning oil smell when the car is hot, or visible grime and wetness around the transfer case output shafts. If you notice these, it’s time for a sealing kit replacement.

Yes, this kit is specifically designed to fit the transfer case units found in the Daimler Chrysler LX platform and Mercedes-Benz SEC models. It includes the necessary components to seal the shaft ends effectively.

While a DIY enthusiast with the right tools (like a seal puller and driver) can perform the task, it requires precision to ensure the seal is seated squarely. If the seal is damaged during installation, it will continue to leak. Professional installation is recommended if you aren’t experienced with drivetrain repairs.

Ignoring a leak can lead to low fluid levels, which causes internal friction, overheating, and eventually total transfer case failure. A small investment in a sealing kit now prevents a very expensive transmission or transfer case replacement later.

Seals usually wear out at a similar rate. If one output shaft seal is leaking, the others are likely close to failing. Replacing all seals at once with a kit ensures the entire unit is refreshed, saving you time and labor costs in the long run.