Differential Breather Modification 2015 Nissan Frontier PRO-4X
Remove your spare tire to have more room under your Frontier.
This mod will protect your differential in case the original breather fails to close when driving through water or mud.
I will show the routing and how I attached the pipe end into the highest point on the chassis.
Clean the area to make sure dirt does not enter your differential .
Use a flare wrench to remove old breather.
Install new barb fitting.
Run house through the chassis to the light well.
Make sure to leave sufficient lack on the house on the differential side.
Install and tighten the house to the barb.
What I did here was to connect the filter to the house, then add a second piece of pipe. This will allowed me to hold the house to the highest part of the chassis.
Also, by introducing the house into the existing notch, noise from the house vibrating or slapping around is no longer an issue.
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