Step-by-Step Installation of a Transfer Case Seal
Puddles of oil under your transfer case are reminders that you need a new transfer case seal. If neglected, this could lead to serious problems with your transfer gears. That is basically the result of lubricant loss, which allows your gears to seamlessly rotate in response to your transmission. Before worse comes to worst then, buy a new seal and install it in place of the leaky part. This is going to be a greasy muscle work, but you can do it on your own if you want to. Here is a step-by-step guide you can use and follow:
Difficulty level: Difficult
Things you'll need:
- 11 mm open-ended wrench
- Long flat-headed screwdriver or seal puller
- Large socket to fit over the new seal or seal installation tool
- Hammer (preferably with a short handle)
- Pry bar
- Light grease
- New seal
Step 1: Raise your vehicle with a jack and secure it on a stand.
Step 2: Mark the position of the yoke to ensure easier reinstallation of the driveshaft. Remove the bolts that secure the rear yoke clips with an 11mm wrench. This will free the driveshaft. If it does not fall on its own, pry the u-joints from the yoke to loosen the driveshaft.
Step 3: Stick a long screwdriver inside the housing to take the seal out carefully. Make sure you don't damage the output shaft splines.
Step 4: Clean the housing from adhesive remnants and other unwanted elements prior to installation of your new part. This will ensure better service life of your new seal.
Step 5: Apply grease or your dealer's recommended lubricant on your new seal, and install it to the housing. Make sure that the flat part of the seal sits evenly in the housing.
Step 6: Put some grease on the shaft end that goes right back into the housing, and then push it carefully into the seal and into the housing. Check if the alignment is correct using the mark you placed on the yoke.
Step 7: Re-install the clips and bolts that keep the driveshaft intact with the yoke.