Is this an axle seal leak?

passenger front diff where drive axle meet.

What am I to expect? No puddle, however have a drop spot on floor x 2

On a 6 inch lift. Keeping an on this

 

Look higher make sure it’s not cam tower, valve cover or oil pan. Or anything in between.

 

What does the oil smell like?

 

like suggested look higher see if anything is leaking down. but looks like probably a axle seal leaking, very likely with 6 inch lift see lots of leaky axle and pinion seal leaks on lifted trucks from all brands

 

Used a white glove to swipe the circumference of shaft and dry. No trail leak outside of this area

Trucks a garage King, and decided to climb under just to go look

 

I should have checked. Never thought of the smell test. Can check tomorrow as am about to go hit one of the S’s

 

I heard something like this in the past. Long time back.

Replacing the seal hard? I have no prob removing the drive shaft

 

Yeah you know that diff oil stinks! Sounds like you have it pretty narrowed down.

 

I changed the diff fluids late last year. Could I have overfilled it or as heard, check the breather if clogged?

 

very easy. just pull the axle, carefully pry old seal out, find something same diameter as new seal like big socket that you can use to tap it in

 

That’s a good one to check for. Breather is up under the hood. Take it off and clean it up. I don think they fail. But I can see how they could get plugged up.

 

Respect........and thanks for the input

Replaced both front wheel bearings last year, so this should be fun.

I will check stealership for the OEM seal replacement

 

Anymore lead where this breather is? A pic?

Want to rule out everything

 

....... stealership applied rust coating......one indication if they oversprayed.

 

Check under the brake booster. I think there’s 2, one for the trans or transfer case and one for the diff.

 

https://www.tundras.com/threads/front-diff-and-trans-breather-location.520/
Found this

 

Will post up findings

 

Checked diff-area again tonight and another bead of oil exist, so surgery is more imminent.

Rock auto replacement part is $7, stealership is $26, Ebay is $19....... go figure.

YouTube best video:

https://youtu.be/mh1BK5--KrU

 

My leaked a little when I first got mine. It stopped after the first couple thousand miles. It never dripped on the ground. I’m at 30,000 miles and I just changed the front diff oil and it wasn’t low before I changed it.

 

Surgery complete after almost 6 hours. Was taking time.

Hardest.... meshing the axle back into the diff.

Just need to top off and am good. I forgot which fluid to use...hhhhmmmm

 

Mobile1 or royal purple is what I like.

 

75 x 90 Mobil 1

 

I have an extra seal for the passenger side.

Up before grabs, just pay for shipping