What does a rear axle vent tube do?

the axle breather tubes are there to aloow for pressure changes in the axle when you go down the road the gears heat the oil causing it to expand when they cool off the oil contracts (makes sense right ?)

What problem may be caused if the rear axle breather is blocked?

The breather valve on top of the axle, where fitted, can also become blocked. This causes oil and air to build up inside, which may force oil out of leak-prone places. Overfilling the axle with oil can also raise the pressure enough to cause leaks.

What is a differential breather tube?

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 makes an axle vent hose so important?

The axle vent hose attaches to the differential, which enables variable rotational speed of your wheels as you turn. What Makes an Axle Breather So Important? The aforementioned process of enabling variable speed during turns is part of what makes your vehicle so powerful.

Where can I buy a differential vent Kit?

Sold as a kit. (10) Select your preferred location and we’ll note which parts are ready to be picked up TODAY. Vent Bellow, Black, Rubber, 1/4 in. Inlet, Universal, Each Transmission and Rear End Vent, -4 AN to 1/2 in. Barb, Includes Breather Filter, Each Differential Vent, Aluminum, Brushed, 1 in. Hex Head, 1/4 in. NPT, Each

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.

Where is the vent hose on a Dodge Ram?

Once you figure it out make sure to let us know , I’m curious to exactly what it is. Differential housing vent hose, that usually is attached (clamped) to the cross member above the differential. It should have a plastic fitting in the end of the hose to keep water and dirt out. MegaMouseGW and Tolson93 like this.