Differential Breather Relocation

[Exdeus]

Hey folks -

Don’t have a chance to get under the truck and look right now and getting down to the wire on time, but does anyone know how high the front and rear differential breather tubes go into the body? I have a 2015 1500 crew cab 4x4.

I’m heading out this weekend and will be doing a river crossing and several creek crossings through our trip. Curious if I should hook up an ARB differential breather relocation kit on it or if it should be good to go. Water could be as high as doors but likely a few inches below. Don’t have a snorkel yet either so won’t tempt anything higher!

Appreciate the insight!

 

[crash68]

I know the rear axle breather is a couple inches below the body. The transfer case one might be lower.

 

[Exdeus]

Thanks boss. I'll be installing the breather kit

 

[PaulTGarrett]

On my old '78 Bronco and on my swamp buggy I ran an extra steel fuel line down the frame next to the original fuel line... Then used rubber fuel hose on each end to route the axle, transfer case, and transmission vents up into the air cleaner. Front axle takes a more direct route... Not enough vacuum to suck water into the axles (I never found any) but keeps the end of the vent line in clean air. And if you are sucking water into your air cleaner, you have bigger problems than your axles!

On my '12 RAM, I just replaced the rear axle vent hose with longer hose and put the little vent line do-hickey up as far as I could behind the brake lights. Front axle same thing except up on the firewall. Transfer case vent is next on the to-do list, will probably put it up high on the firewall next to the front axle vent.

 

[Daniel Ortiz]

Thanks boss. I'll be installing the breather kit

Hey Exdeus, I know it's been three years, but how did that vent relocation go? I'm looking to do one to my truck eventually, for both axles as well as for the transfer case. Do you have any advice from what you learned?

 

[Exdeus]

Hey Exdeus, I know it's been three years, but how did that vent relocation go? I'm looking to do one to my truck eventually, for both axles as well as for the transfer case. Do you have any advice from what you learned?

Hey boss. Never ended up doing it. Have never hit deep enough water with it. Traded in the 1500 and run a 2500 now and haven't done it on that yet either.

 

[crazykid1994]

Hey Exdeus, I know it's been three years, but how did that vent relocation go? I'm looking to do one to my truck eventually, for both axles as well as for the transfer case. Do you have any advice from what you learned?

Rear axle is not in a bad spot. It sits just under the bed. I extended mine up to the fuel fill door. Transfer case only goes up 2” from the tcase. I ram my tcase breather up to the top of the firewall following the factory transmission breather line. The front diff only goes up 2” as well. I extended mine up to above the driver side headlight using the radiator support as my attachment point. Unfortunately I do not have any pictures

 

[Sandevino]

From my cursory look, the breathers look to have one way valves on them allowing pressure out but nothing in.

I too plan to extend and relocate the valves higher.

 

[Wild one]

From my cursory look, the breathers look to have one way valves on them allowing pressure out but nothing in.

I too plan to extend and relocate the valves higher.

They allow air back in to. You can't have a 1 way check valve on anything that gets hot,and then cools off,seals wouldn't last. I think it's just a cap on the end of the breather hoses,not a check valve

 

[kurek]

I haven't needed to worry about deep water crossings so far and I drive around mud whenever possible, but has anyone looked into adding these? Seems like a clean and clever solution that should fit anything that uses a hose breather to handle heat expansion

 

[Wild one]

I haven't needed to worry about deep water crossings so far and I drive around mud whenever possible, but has anyone looked into adding these? Seems like a clean and clever solution that should fit anything that uses a hose breather to handle heat expansion

View attachment 234202

If you read the reviews on it,it looks like it might not be as good as it looks on paper

 

[Wild one]

The old school way i've done diff breathers is just use fuel line hose to extend the hose up farther ,a small worm gear clamp to lock it onto the breather tube,and stick a cheap steal or plastic 5/16" fuel filter on the end of the hose.The filter allows the diff or t-case to breath but keeps dirt /dust etc. from being sucked into the diff,plus it'll keep alot of the water out of the diff on a short water crossing,it won't keep all the water out if you bury it though,lol.
Similiar to this idea on my stand alone fuel cells roll over vent.

 

[Daniel Ortiz]

The old school way i've done diff breathers is just use fuel line hose to extend the hose up farther ,a small worm gear clamp to lock it onto the breather tube,and stick a cheap steal or plastic 5/16" fuel filter on the end of the hose.The filter allows the diff or t-case to breath but keeps dirt /dust etc. from being sucked into the diff,plus it'll keep alot of the water out of the diff on a short water crossing,it won't keep all the water out if you bury it though,lol.
Similiar to this idea on my stand alone fuel cells roll over vent.

That is what I've seen others do, and what I'll probably do myself. Cheap and simple, except for the freaking fuel cell, which powered the Space Shuttle! That's a heck of a power source you've got there!

I haven't needed to worry about deep water crossings so far and I drive around mud whenever possible, but has anyone looked into adding these? Seems like a clean and clever solution that should fit anything that uses a hose breather to handle heat expansion

That is a nifty looking device, but I agree with Wild One, it probably doesn't seal or breathe as good as a simple hose up to a dry place.

 

[Wild one]

That is what I've seen others do, and what I'll probably do myself. Cheap and simple, except for the freaking fuel cell, which powered the Space Shuttle! That's a heck of a power source you've got there!



That is a nifty looking device, but I agree with Wild One, it probably doesn't seal or breathe as good as a simple hose up to a dry place.

The trucks more toy then truck,the battery is also back there to,lol.Fuel cells up in the front corner ,battery sits in the back corner,lol



Truck is NHRA legal with a master disconnect switch in the bumper,and driveshaft loop

 

[crackerjack1957]

I would sat this truck has made it to the drags........LoL