Explain this wear! 🤨

[calgrizz52]

So first time I did my front axle seals I noticed some strange wear marks on my axle.

Now I'm doing it again, but I took a picture. Drivers side.

What would cause this? It's right above the paper towels.

 

[BILT4ME]

So first time I did my front axle seals I noticed some strange wear marks on my axle.

Now I'm doing it again, but I took a picture. Drivers side.

What would cause this? It's right above the paper towels.View attachment 4067721

Those are grinder marks from the OEM casting where they did casting flash removal prior to machining. That's why those marks don't affect the inner axle seal seat opening.

Nothing to worry about.

Some of the folks posting in here will show marks inside the housing that are a result of a Birfield exploding and the balls and chunks rolling around in there or loose wheel bearings and the Birfield would grind inside the housing. They difference is that those usually end up chewing up the upper trunnion bearing area.

Make sure your axle guide washer is still intact behind the inner axle seal. This guides your axle shaft to reduce damage to the seal during assembly and in case the Birfield or wheel bearings are loose.

 

[Hornd]

What does the Birf look like?
Something had to Rub that Point to Cause the Wear.
Looks to me like someone had a Grinder or Stone in there.

 

[Hornd]

Those are grinder marks from the OEM casting where they did casting flash removal prior to machining. That's why those marks don't affect the inner axle seal seat opening.

Nothing to worry about.

Some of the folks posting in here will show marks inside the housing that are a result of a Birfield exploding and the balls and chunks rolling around in there or loose wheel bearings and the Birfield would grind inside the housing. They difference is that those usually end up chewing up the upper trunnion bearing area.

Make sure your axle guide washer is still intact behind the inner axle seal. This guides your axle shaft to reduce damage to the seal during assembly and in case the Birfield or wheel bearings are loose.

Blind Bird Found a Worm!

 

[calgrizz52]

Those are grinder marks from the OEM casting where they did casting flash removal prior to machining. That's why those marks don't affect the inner axle seal seat opening.

Nothing to worry about.

Some of the folks posting in here will show marks inside the housing that are a result of a Birfield exploding and the balls and chunks rolling around in there or loose wheel bearings and the Birfield would grind inside the housing. They difference is that those usually end up chewing up the upper trunnion bearing area.

Make sure your axle guide washer is still intact behind the inner axle seal. This guides your axle shaft to reduce damage to the seal during assembly and in case the Birfield or wheel bearings are loose.

Thanks for the help I appreciate it

The thought of what this area would look like if my cv exploded give me nightmares

 

[robnicko]

i noticed those marks on mine last weekend when fixing a leaky seal.
the Birf looked fine so assumed it was a manufacturing thing as its never made any unusual sounds

 

[Broski]

Those are grinder marks from the OEM casting where they did casting flash removal prior to machining. That's why those marks don't affect the inner axle seal seat opening.

Nothing to worry about.

^^^ this

 

[calgrizz52]

i noticed those marks on mine last weekend when fixing a leaky seal.
the Birf looked fine so assumed it was a manufacturing thing as its never made any unusual sounds

Right. After my first job and everything was fine, I didn't even think about it, until doing the job again.

Was thinking the PO had some problem at one point and fixed it.

Good to know it's part of the OEM manufacturing process and it's on other axles too

 

[robnicko]

Right. After my first job and everything was fine, I didn't even think about it, until doing the job again.

Was thinking the PO had some problem at one point and fixed it.

Good to know it's part of the OEM manufacturing process and it's on other axles too

and isnt it a nice clean job to do..................