if you are refering to the front of the differential, it is pretty easy.But you will need an impact gun to get the large nut off though. You also have leaks possible at each axle wheel bearing end behind brakes on each wheel. Before you attempt to do this have the new parts to replace FIRST because once you pull the old parts off they are basically destroyed.
Your question is vague. Where is it leaking from? Or, r u asking how to find the source of the leak?
Axle shaft seal.Axle shaft seal.
The 1997 Pontiac Sun fire axle seal can leak because of age. A bad wheel bearing is the most common cause for an axle seal to leak.
One way to find an oil leak on a 2000 Kia Sportage is to place a sheet of cardboard under the car when it is parked. By noting where the oil is dripping from, a person can determine about where the oil leak is on the motor. One place where oil may leak frequently is a full oil filter.
It all depends on what part is leaking what fluid. Brake cylinder would leak brake fluid. Axle seal would leak gear oil.
Axle seal is bad and needs to be replaced
Brake wheel cylinder or axle sealBrake wheel cylinder or axle seal
Where is the leak at? Engine?
The most common leak points are the cooler hoses and the axle shaft seals.
Sounds like a bad axle seal. You'll have to remove the axle to replace it.
replace the housing o ring
bad wheel bearings, or bad seal.