The OEM rear differential breather which comes on Toyota Tacoma, FJ Cruiser, 4Runner, and Lexus GX470 and GX460 axles is a mechanical unit that is prone to failure when dust and dirt get into the unit. When the unit fails, pressure can build inside the differential and will push out the axle seals and lead to a costly axle rebuild or replacement. This replacement breather is a non-mechanical unit that is manufactured with a durable waterproof and air-permeable membrane (similar to that found in high-performance backpacking gear!). It allows the differential to breathe with changes in temperature and atmospheric conditions.
With the offroader in mind, we built this kit to include your choice of 3.5' or 7' of hose to relocate the breather somewhere away from the elements.
- Select 7' hose if you want to route your breather behind the taillight
- If you have a unique lift and require a longer hose, please reach out