Diff Breather Valve Location

[Titan26]

Hi everyone,

I’ve been lurking on these forms for awhile but this is my first post here haha.

Does anybody have experience with relocating a front breather valve to be near the location I marked on the image? I am moving the breather valve on my Dana 44 after I cut and turned the C’s and angled up my pinion.

I am putting a truss on this axle and I want to move the breather valve behind the truss so it is higher and out of the way. Does anyone see any potential problems with this? The valve will not be directly above the ring gear.

 

[wvracer821]

The only issue I can think of there is the possibility of the ring gear flinging oil up the tube and eventually slobbering out the other end
Edit: I can’t read and I’m dumb

 

[westracing01]

Using existing placement and just roll the truss back a few degrees isn't an option? Then just drill a hole in the top of the truss and run the breather line through it?

 

[mobil1syn]

just put in the axle tube

 

[Aisin]

just put in the axle tube

This. I wouldn’t run it anywhere near the center section.

 

[Titan26]

This is a front axle it has to be on the pumpkin.

 

[Titan26]

Using existing placement and just roll the truss back a few degrees isn't an option? Then just drill a hole in the top of the truss and run the breather line through it?

I want the top of the truss to be level.

 

[Aisin]

This is a front axle it has to be on the pumpkin.

Bullshit. My FJ80 front axle says you are wrong. The breather is several feet from the center section.

 

[Nvr-enough]

Bullshit. My FJ80 front axle says you are wrong. The breather is several feet from the center section.

Depends on where the axle seals are.. if the seals are at the diff, a vent in the axle tube isnt gonna do much good

 

[Aisin]

Depends on where the axle seals are.. if the seals are at the diff, a vent in the axle tube isnt gonna do much good

Got me there I blame many lagers

 

[Wuz-A-zuk]

Is that hole the factory breather spot? Why not just "massage" that truss out of the way and use that. If you're not welding the truss to the differential then you could even cut a little out of the way.

Edit: Nevermind, didn't read your last paragraph of wanting it out of the way.

 

[mobil1syn]

This is a front axle it has to be on the pumpkin.

drill and tap away or coming up with some convoluted adapter to get the breather through the truss to the back of the truss.

 

[arse_sidewards]

Here's where it is from the factory. Even with the truss you should be able to get pretty close to this. Where you have it is probably fine too. Throw a little extension on the fitting poking into the case like you see on a fuel bowl if you're worried about it sucking oil.

This. I wouldn’t run it anywhere near the center section.

Every IFS/IRS center ever does and it works fine.

 

[Tydes]

On my rear engine car I run breather on the diff cover. I weld a baffle on three sides 1/4-3/16” off the hole to keep the ring gear from tossing oil towards the breather or when it rolls the oil has to go around the baffle rather then pour out.

 

[arse_sidewards]

On my rear engine car I run breather on the diff cover. I weld a baffle on three sides 1/4-3/16” off the hole to keep the ring gear from tossing oil towards the breather or when it rolls the oil has to go around the baffle rather then pour out.

 

[chaplinfj60]

On my rear engine car I run breather on the diff cover. I weld a baffle on three sides 1/4-3/16” off the hole to keep the ring gear from tossing oil towards the breather or when it rolls the oil has to go around the baffle rather then pour out.

this

 

[Titan26]

Here's where it is from the factory. Even with the truss you should be able to get pretty close to this. Where you have it is probably fine too. Throw a little extension on the fitting poking into the case like you see on a fuel bowl if you're worried about it sucking oil.

Every IFS/IRS center ever does and it works fine.

I like to this idea. Do you think I can run it where I marked and put the extension on the breather so it doesn’t suck oil?