Have you extended your transmission and tranfer case breathers?

[TexasJack]

I extended my diff breathers some time ago to right up under the hood. I was considering extending the breathers from my transfer case and transmission. They currently connect to the tube where the tranmission dip stick is located.

Has anyone else extended these breathers? Is it really necessary? Do the current breathers extend into the tranmission dip stick tube? If so, wouldn't a burp from the transfer case contaminate the transmission fluid?

Should they be on separate lines and extend higher into the engine bay?

 

[jeffro109]

those lines on the side of the dipstick tube vent out to the atmosphere, and do not connect into the dipstick tube.

Yes, I extended mine up to near the brake MC with a cheapo fuel filter on the end of a hose, not sure it is worth it unless you will for sure get as deep as the original lines are. My hands had a hard time getting in there and doing the work, very tight spaces to work in.

I also have the front axle extended up next to the charcoal canister, and the rear axle extended up into the quarter panel next to the fuel filler door.

 

[sky90]

those lines on the side of the dipstick tube vent out to the atmosphere, and do not connect into the dipstick tube.

Well...i learned something today, thks jeffro

 

[Jacket]

Since I already had the tubing and clamps I went ahead and extended the tranny and tcase. I pulled the two breather tubes off the dipstick, put a tee connector on them, and then ran a new hose up to the engine bay near the ABS with a new breather valve on top. Then I capped off holes on the dipstick tube.

 

[TexasJack]

those lines on the side of the dipstick tube vent out to the atmosphere, and do not connect into the dipstick tube.

Yes, I extended mine up to near the brake MC with a cheapo fuel filter on the end of a hose, not sure it is worth it unless you will for sure get as deep as the original lines are. My hands had a hard time getting in there and doing the work, very tight spaces to work in.

I also have the front axle extended up next to the charcoal canister, and the rear axle extended up into the quarter panel next to the fuel filler door.

This is what I needed to know. I definitely plan to extend them. I am trying to ensure that I don't have water issues in my fluids. I cross some fairly deep but very slow moving creeks when I deer hunt. I don't want to have to change my fluids everytime I cross a creek.

I plan to detach the existing lines by simply cutting them where they join the dipstick tube. I then plan to use the existing tubes and simply connecting them to a couple of pieces of fuel line and extend them to just under the hood.

Thanks a bunch for the info!

 

[80t0ylc]

Just a friendly reminder that extending your beather lines does not guarantee that water won't make it inside your diffs, knuckles, wheel bearings and tranny/transfer housings. Seal condition and operating temperature of your axles have a lot to do with it (hot housings contacting cold stream water can affect how waterproof the system is) and the knuckle seals are meant to allow grease to coat the outer surface normally. Even with seals and all in excellent condition, if these parts are submerged on deep or extended water crossings, replacement of lube schedule is dramatically effected. Don't know exactly what is recommended, but I know it's not wise to ignore.

 

[TexasJack]

Just a friendly reminder that extending your beather lines does not guarantee that water won't make it inside your diffs, knuckles, wheel bearings and tranny/transfer housings. Seal condition and operating temperature of your axles have a lot to do with it (hot housings contacting cold stream water can affect how waterproof the system is) and the knuckle seals are meant to allow grease to coat the outer surface normally. Even with seals and all in excellent condition, if these parts are submerged on deep or extended water crossings, replacement of lube schedule is dramatically effected. Don't know exactly what is recommended, but I know it's not wise to ignore.

Understood. I have always taken good care of the vehicle historically but I made all of these modifications specifically so I could use it in more advanced ways. That will include water crossings. I have seen comments on MUD where people have suggested changing your fluids everytime you do extended water crossings. I'll keep that in mind. I just rebuilt both axles and I don't want to have to do it again anytime soon.

 

[80seriesnut]

I did my diffs but not the other two. Yet