Differential, Transmission, TC Breather

[Badao]

Can you guys school me on the OEM breather plug? I was getting ready to extend the rear diff breather by using the OEM union and breather plug but than I realized the OEM breather plug (90930A3001) is an one way valve which only let air out not back in. When it is under a vacuum, there are other areas that may allow water to enter. So extending the breather plug does nothing at this point if it will not allow air to enter. The transmission and TC will be under same situation even though their breather is high enough. Shouldn't we need two way valve that allows air in and out for all these components?

 

[llm]

Can you guys school me on the OEM breather plug? I was getting ready to extend the rear diff breather by using the OEM union and breather plug but than I realized the OEM breather plug (90930A3001) is an one way valve which only let air out not back in. When it is under a vacuum, there are other areas that may allow water to enter. So extending the breather plug does nothing at this point if it will not allow air to enter. The transmission and TC will be under same situation even though their breather is high enough. Shouldn't we need two way valve that allows air in and out for all these components?

usually when people extender their breathers, the tubing goes to an air filter which will allow air to flow both directions. I have a knock off arb kit from amazon and have gone through water deep enough to submerge the OEM diff breather location. My diff fluid did not have water when I changed the fluid.

 

[Badao]

usually when people extender their breathers, the tubing goes to an air filter which will allow air to flow both directions. I have a knock off arb kit from amazon and have gone through water deep enough to submerge the OEM diff breather location. My diff fluid did not have water when I changed the fluid.

Yeah I was originally looking to buy the ARB kit but than I saw people coming up with the cheaper option using OEM parts and a 5/16 fuel line which cost about $20. Once the diff is submerge, water is going to find its way in if it does not allow air to suck in!

 

[llm]

Yeah I was originally looking to buy the ARB kit but than I saw people coming up with the cheaper option using OEM parts and a 5/16 fuel line which cost about $20. Once the diff is submerge, water is going to find its way in if it does not allow air to suck in!

the tubing included in the kits is a plastic, pex-like tubing. it's rigid, semi flexible, but if bent sharply, it would fold and kink. fuel line would be most tougher. the guys who use fuel line typically run the rear diff breather to behind the tail light.

Your front differential comes up to about the top of the fender. it's located near the battery base on the driver side. TC and trans breathers are harder to access and but it supposedly located relatively high already.

 

[Badao]

the tubing included in the kits is a plastic, pex-like tubing. it's rigid, semi flexible, but if bent sharply, it would fold and kink. fuel line would be most tougher. the guys who use fuel line typically run the rear diff breather to behind the tail light.

Your front differential comes up to about the top of the fender. it's located near the battery base on the driver side. TC and trans breathers are harder to access and but it supposedly located relatively high already.

Don't you need to change the front differential, TC and trans breathers to an air filter since the OEM plugs only let air out?

 

[llm]

Don't you need to change the front differential, TC and trans breathers to an air filter since the OEM plugs only let air out?

yes. if you want to do it thoroughly, you would route all to a manifold with filter.