What does a rear axle breather tube do?
What does a rear axle breather tube do?
A differential / axle breather serves the important purpose on a 4WD vehicle of venting the air pressure in drivetrain assemblies such as the differentials, transmission and transfer case. This vacuum will tightly close the valve shut causing air to be instantly drawn into the assembly through the seals.
What is the rear axle vent tube?
As the axle increases in temperature, the air pressure inside the axle likewise increases. To accommodate the increase in air pressure resulting from this heat, manufacturers add a vent tube to the top of the axle as means of releasing this pressurized air to the atmosphere.
When should I change my differential fluid Jeep JK?
Following “Schedule B” in the Jeep owner’s manual (heavy driving), you should change your differential fluids every 15,000 miles. However it is always a good idea to do this IF you’ve submerged your axles in deep water for prolonged periods of time.
What axle is in my Jeep JK?
All four-door JK Wrangler original owners do have Dana 44s under the rear end. Currently, if you have purchased the new JL Wrangler, you have Dana 30 front and Dana 35 rear axles, unless you specifically bought one with upgraded Dana 44s. All Rubicon JL owners have a Dana 44 front and rear axle.
What problem may be caused if the rear axle breather is blocked?
A clogged breather can absolutely cause a failed axle seal. As the differential heats up, there is a build-up of pressure and the pressure needs to go somewhere. If the breather isn’t working, the pressure will find the path of least resistance and that’s the oil seals on either ends of the axle housing.
Is a differential breather necessary?
Why are Diff Breathers important? Extended diff breathers are extremely important insurance for your 4WD if you drive through water. In essence, when you go through a puddle that is near or above diff height, you are dunking a hot differential into cold water.
What does the axle vent hose do?
It is a differential vent, prevents the axle from building up pressure and blowing out seals. Install a new chunk of hose and ensure the nipple on the axle is free of dirt and debris so your axle can breath.
How much does it cost to change the differential fluid on a Jeep?
When that happens, it may be time to change it out. You’ll only pay somewhere between $80 and $140 for differential fluid change. The labor should be between $50 and $70, while parts can cost anywhere from $30 to $70.
What is the purpose of a differential breather?
A differential / axle breather serves the important purpose on a 4WD vehicle of venting the air pressure in your drivetrain assemblies such as differentials, gearbox and transfer case.
What is the function of the axle breather?
Axle breather serves a very important purpose on a vehicle to vent air pressure in drivetrain assemblies such as the differential assembly, transmission assembly and transfer case. Under normal operations, these assemblies produce heat and the air inside expands, thereby increasing the pressure.
Do you need to replace your differential breather valve?
Therefore, keeping an eye on your differential breather vent and replacing it as needed is always an excellent idea. If you’ve never dealt with replacing an axle vent valve or its related parts before, shopping might be a little difficult.
When do you need an axle breather in a jeep?
When you’re off-roading, there is little that can stand in your way. You control rivers and rocky terrain with ease. This is one of the greatest benefits of the Jeep is that you can plough through anything, especially watery terrain. Of course, in order to make the most out of your trip, you need the right axle breather.
Why do you need vents in your axles?
The differentials used in your axles work alongside your axle vent hose and axles themselves to keep you moving forward. In the process, they come in contact with numerous types of hot gasses that could damage them.
