What does the output seal on a transfer case do?
This is basically what makes a car a four-wheel drive. The transfer case output shaft attaches the case to the axle. The purpose of the output seal is to prevent fluid from leaking out of the transmission, where it connects to the transfer case.
How do you replace a transfer case output shaft?
Slide under the vehicle and locate the transfer case output shaft. Step 3: Pry out the drive shaft. If you have a front slip yoke drive shaft, remove the bolts to the drive shaft on the rear axle. Use a large flat screwdriver and slightly pry out the drive shaft and universal joint from the yoke on the axle.
Why is there a seal on the output shaft?
The purpose of the output seal is to prevent fluid from leaking out of the transmission, where it connects to the transfer case. The seal also prevents fluid from leaking out of the front and rear output shafts to the differentials. This helps to keep the metal parts properly lubricated for long term use.
When do you need a transfer case in a car?
An automobile’s transfer case is the apparatus that enables power to be transferred to the rear wheels when the car is switched to 4 wheel drive. Almost all cars nowadays have front-wheel drive. However, you must have a transfer case to transmit energy to the back wheels.
How to replace a transfer case output shaft seal?
Use a hammer and smack the seal installer to draw in the seal into the output shaft housing. Step 3: Put the slip yoke back. Pick up the drive shaft and put the slip yoke back onto the transfer case output shaft. Make sure that you line up the timing marks that you made to ensure that the drive shaft goes back on correctly.
What causes an output shaft seal to fail?
The most common sign of output shaft seal failure is the drip of gear oil leaking from the seal. Other signs are slight whining noises that occur when the output shaft is in motion. In many cases, these noises are caused by the reduction of lubricants inside the transfer case or metal-to-metal grinding.
What are the symptoms of a bad transfer case output shaft?
Common signs include difficulty shifting gears, grinding noises coming from underneath the vehicle, and jumping in and out of four-wheel drive. What is the transfer case output shaft seal?
What happens when the transfer case goes bad?
The physical part of the vehicle that activates this action is the transfer case, which has an output shaft that delivers power to the drive axle. From time to time, the seals that connect these components together can dry up, wear out, or break.