Axle vent extensions

bgenlvtex · Mar 27, 2021

I must be blind I just spent a half hour under mine and if there is a vent on the rear differential I don't see it.

The front one is obvious and yes too short, but I sure don't see one on the rear

olyelr · Mar 27, 2021

bgenlvtex said:
I must be blind I just spent a half hour under mine and if there is a vent on the rear differential I don't see it.

The front one is obvious and yes too short, but I sure don't see one on the rear

Drivers side of axle (yellow arrow). Terminates at red arrow.

bgenlvtex · Mar 27, 2021

olyelr said:
Drivers side of axle (yellow arrow). Terminates at red arrow.

View attachment 242649

AH! thank you!

IRSmart · Mar 27, 2021

His won’t look like that, they’re only a few inches long on the 2019. But yes you have one. The breather might actually be gone, that’s happened too.

Socalramfan · Dec 19, 2022

Older thread, but still relevant :waytogo:

ANGLICO · Oct 8, 2023

First post to this Forum.

THANK ALL of you for giving me some sanity.

I just got my 2022 (slightly used) with the level 3 interior. I lucked out on the price. High gas prices played into that for previous owner.

Anyway, THANK YOU for this thread. I was going a bit batty for a day trying to figure out these needed precautions and vent relocations.

olyelr · Oct 8, 2023

ANGLICO said:
First post to this Forum.

THANK ALL of you for giving me some sanity.

I just got my 2022 (slightly used) with the level 3 interior. I lucked out on the price. High gas prices played into that for previous owner.

Anyway, THANK YOU for this thread. I was going a bit batty for a day trying to figure out these needed precautions and vent relocations.

What front bumper is that?

GTyankee · Oct 8, 2023

Do you have my axle vent package ?

ANGLICO · Oct 8, 2023

olyelr said:
What front bumper is that?

Chassis Unlimited Have the back one to match/similar, however, I wish it were more of an overland bumper with integrated tire and Jerry Can swing arms. But I bought the truck "as is" and am still very happy with the current set up. The back looks excellent with the grey paint on my truck.

https://bumpersuperstore.com/c-1208802-truck-bumpers-chassis-unlimited.html

(Note: I read the Forum Rules and do not believe I am in violation with above link. Correct me if that is not the case).

ANGLICO · Oct 8, 2023

olyelr said:
What front bumper is that?

This is my truck at work - how it looks from a real angle.

ANGLICO · Oct 8, 2023

IRSmart said:
My extensions basically mirror @Maligator . I ran the four breathers up to the engine bay and the rear diff up behind the driver’s tail light. I used brass barb fittings and with hose clamps to make sure nothing ever came undone. I added onto the factory tubing instead of replacing them so I could use less hose. The only one that’s a bit of a ***** is the evap line, since it’s not really a hose that you’re extending, it’s a solid plastic tube. You have to cut that tube, use a new hose clamped over the stub you leave behind to extend it (which is why it is a different diameter than the rest of the lines), and clamp onto the mushroom that you cut off to be the breather at the end. I used all the factory breathers, I didn’t purchase a kit, or use aftermarket ones. No pictures of factory locations, but there’s a really good post on power wagon registry that shows diagrams of the truck’s components with arrows showing where the breather tubes come out, that’s what I used for the transmission and transfer case. The evap is a bit more of a ***** to find, I had to follow the line all the way from the evap canister to where it ends on top of the transmission on the passenger side to find the breather mushroom.

View attachment 242041 View attachment 242042 View attachment 242043

Thank you for this info. Also, I went onto the Power Wagon Registry and found the link to the thread there that shows PICTURES OF TRANSFER and TRANNY vents. Appreciate you pointing that out. This thread has saved me aggravation. I appreciate it.

Below Pics/Info at this link: https://forum.powerwagonregistry.org/viewtopic.php?f=2&t=4725&p=95168&hilit=axle+vent#p95168

ANGLICO · Oct 14, 2023

Maligator said:
I followed @IRSmart lead and extended all of my breathers there is a total of 5 (front, rear axles, transmission, transfer case and evap tube)Youll need 3/8" I.D. hose for everything(approx 25ft) but the evap line thats 5/8" I.D. (approx 6ft) also a few male to male barb fittings. I used the barbs to add onto the factory lines for the axles and the transfer case. The trans is only a 2" stub so that needs to have a full run of hose. I ran the front diff trans and transfer case along the frame and up into the engine bay, evap went into the engine bay as well. Rear diff was extended up behind the D/S tailight. The trans is tough to find its only a little nub thats right on the too of the bell housing and the evap tube on mine ran along the passenger side of the trans wrapped in a foil heat resistant covering
Heres some pics to help, first three are loactions and the last two are just how i routed everything. Mind you all of this is on a 2017 so there maybe some variance. View attachment 458539

Sent from my Pixel 2 using Tapatalk

OK - @Maligator I'm still appreciating your post and see all but one. Have the hoses and clamps and am working it.

I cannot find where the Evaporator Vent terminates, to extend. I have read up on the diagrams of the evap system and watched several troubleshooting videos.

Any pointers before I go down the street and find someone who actually is not blind to this? Does it come forward up the drive train past the tranny on the driver's side, from the canister?

I found it. I'm going to lose the hard tube that routes it from the driver's frame to the top of the Transmission (where the Vent Cap is). I'm going to cut and tap into it going straight forward along the driver's side frame and run it up the firewall (with heat protection from exhaust header).

EDIT ADD: Link to another forum discussing the Vapor Vent Tube: https://www.ramforum.com/threads/va...line-missing-underneath-brake-booster.178576/

Thanks much!

ANGLICO · Oct 17, 2023

IRSmart said:
My extensions basically mirror @Maligator . I ran the four breathers up to the engine bay and the rear diff up behind the driver’s tail light. I used brass barb fittings and with hose clamps to make sure nothing ever came undone. I added onto the factory tubing instead of replacing them so I could use less hose. The only one that’s a bit of a ***** is the evap line, since it’s not really a hose that you’re extending, it’s a solid plastic tube. You have to cut that tube, use a new hose clamped over the stub you leave behind to extend it (which is why it is a different diameter than the rest of the lines), and clamp onto the mushroom that you cut off to be the breather at the end. I used all the factory breathers, I didn’t purchase a kit, or use aftermarket ones. No pictures of factory locations, but there’s a really good post on power wagon registry that shows diagrams of the truck’s components with arrows showing where the breather tubes come out, that’s what I used for the transmission and transfer case. The evap is a bit more of a ***** to find, I had to follow the line all the way from the evap canister to where it ends on top of the transmission on the passenger side to find the breather mushroom.

View attachment 242043

Great location for the rear axle vent tube termination. Easy routing along the frame and then up through the hole.

I did not take a picture of it, but I used a worm clamp like your photo, but then put a soft rubber grommet around the whole tip to keep the plastic/metal from tapping the sheet metal. Not that I would ever expect to hear that..... from the cab. at least it will save the paint in there.

Drivers side axle to the frame, over the frame by the spare, cross to the hole and up into the fender pocket near the passenger brake light.

ANGLICO · Oct 19, 2023

Maligator said:
I followed @IRSmart lead and extended all of my breathers there is a total of 5 (front, rear axles, transmission, transfer case and evap tube)Youll need 3/8" I.D. hose for everything(approx 25ft) but the evap line thats 5/8" I.D. (approx 6ft) also a few male to male barb fittings. I used the barbs to add onto the factory lines for the axles and the transfer case. The trans is only a 2" stub so that needs to have a full run of hose. I ran the front diff trans and transfer case along the frame and up into the engine bay, evap went into the engine bay as well. Rear diff was extended up behind the D/S tailight. The trans is tough to find its only a little nub thats right on the too of the bell housing and the evap tube on mine ran along the passenger side of the trans wrapped in a foil heat resistant covering
Heres some pics to help, first three are loactions and the last two are just how i routed everything. Mind you all of this is on a 2017 so there maybe some variance. View attachment 458538 View attachment 458539 View attachment 458540 View attachment 458541 View attachment 458542

Sent from my Pixel 2 using Tapatalk

@Maligator and/or @IRSmart (who does not appear to still be a registered member)

Question on the Evap Line extension. Where did you choose to cut the hard tube and extend it with more soft tube?

(on my 2022) I see where the vapor line comes forward along the frame and then from the frame to the driver's side of the trans. That is where it transitions from flex hose to the hard plastic piece. That is the hard tube that wraps back up to the top of the trans towards the front, and ends with the valve/end cap.

1) Did you cut it at the top near the valve / end cap and extend it from there?
Did you cut it more towards the back of the transmission and run it from there?

2) Did you consider bypassing it all together and just connecting to the soft line at the frame and losing the hard line altogether (but still using the valve/end cap)?

3) I'm considering the last question (option) mostly because it is really tight to work up between the top of the tranny and the cab.

Any advice before I cut will be greatly appreciated. Thanks.

ANGLICO · Nov 16, 2023

One additional thought is heat protection for your lines if running near rhe exhaust or rear of the exhaust header along the firewall.

I ended up buying some adhesive radiant covering (cut, peel and stick) and some braided line heat protection sleeving to protect the extended vent tubes near the rear of the motor.

I'll add some pics of the lines to this post when it's dry and I can scoot under the truck.

Heat Shield Sleeve 1" IDX10' Fuel Line Heat Shield Auto Hose Spark Plug Wire Cover Protectors Boots Roll 2500 Degree for Car&Auto Wire Loom Brake Cable https://a.co/d/1vMeMeH

Thermo-Tec 13575 Adhesive Backed Aluminized Heat Barrier, 12" x 24" https://a.co/d/47VB9N8

RedBeastWagon · Mar 23, 2024

IRSmart said:
Oh and to answer one of your specific questions, the lines are the same on the regular 2500’s as they are on the PW. HOWEVER, on the 2019 and up, they stopped doing the full hose runs and just added little 3” stubby hoses with breathers on them to ALL heavy duty trucks. I haven’t seen one of the breathers up close and examined them to see if they’re the same ones used on the previous models or not. If they’re a newer, water-proof kind, then not extending them might not be the end of the world, but still a good piece of mind. If they’re the same breathers that are used before, and you plan on hitting water depths any more than a foot, then you should absolutely extend them up to the engine bay as we’ve done, unless you want your fluids looking like chocolate milk.

So I have a 2024 Power Wagon and it looks like rear diff vent extends up fairly high, but the front diff has a short stubby tube with a vent. I am assuming that the front or both must be a “one-way type vent” since the O&M states 24” water fording depth or 30” depending on the speed. I will need to measure but I would guess that the front tube vent is not above 30”.

DILLIGAF · Mar 23, 2024

All my front Vents are up by my catch can. My rear diff is mounted all the way up to the filler neck.

Also You want you Winch Controller under you hood. They are not waterproof. Even if Warn or Smitty says they are.

crazy jerry · Mar 25, 2024

bgenlvtex said:
I must be blind

Axle vent extensions

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