What the heck is this stuck in my shaft?

[Posi]

I was changing the rear bearings and found this past the bearing in the axle shaft.

2007 Tahoe

What is the purpose of this thing?

It's not factory, is it?

 

[OR VietVet]

First: Welcome to the forum from Oregon. I assume you mean "on" the shaft and not "in" the shaft. I looked for pics of same at RA and found nothing.

Someone here may be able to help but I am guessing it has something to do with a locker.


We recommend that you put all your rig(s) info in your signature so we all don’t have to guess at year, make, model, engine size, trans, rear axle locker…….etc. While you may have posted pertinent info in your first post, you may forget to do it again and the info is needed by us anyway. Makes it way easier on all members that attempt to help, to have that info right up front. It is also recommended that you take a pic of your RPO codes, on the inside cover of the glove box, and post that image in your signature. All this info will greatly help those that will try to help with a problem.


If there is any other info, like upgrades, mods or recent mechanical/maintenance work done, that would be helpful in any post as well. Too many times a question is asked by the poster and after about 10 responses we find out that the poster has done recent work to attempt to fix the problem or work that was done that SEEMS not related to the problem.

 

[Mudsport96]

Rear abs tone ring

 

[Rocket Man]

Yep, ABS tone ring. It’s what the ABS sensor reads as it spins with the axle. It shouldn’t have come out unless you inserted the bearing puller too far. Reinstalling it needs a special Kent-Moore tool according to the service manual. I bought a used one off eBay when replacing mine, it’s a big heavy thing that presses it into the right distance from the end of the axle tube. Also, a new one comes with a sticky substance that I believe holds it in place to the axle do it doesn’t slip, afaik. The manual doesn’t specifically say to not reuse a tone ring (they call it a sensor ring) but I wouldn’t, it’s buried so if you reinstall it and it slips you have to pull the axle, seal, bearing and sensor ring again. Not trying to make things complicated but if it fails you’ll get traction control, stabilitrack and abs errors.

 

[swathdiver]

Yep, you need that Posi! What you doing?

 

[OR VietVet]

https://www.rockauto.com/en/moreinfo.php?pk=4975866&cc=1433255&jsn=2280

If needed, is available at RA

 

[Mike H]

Yep, ABS tone ring. It’s what the ABS sensor reads as it spins with the axle. It shouldn’t have come out unless you inserted the bearing puller too far. Reinstalling it needs a special Kent-Moore tool according to the service manual. I bought a used one off eBay when replacing mine, it’s a big heavy thing that presses it into the right distance from the end of the axle tube. Also, a new one comes with a sticky substance that I believe holds it in place to the axle do it doesn’t slip, afaik. The manual doesn’t specifically say to not reuse a tone ring (they call it a sensor ring) but I wouldn’t, it’s buried so if you reinstall it and it slips you have to pull the axle, seal, bearing and sensor ring again. Not trying to make things complicated but if it fails you’ll get traction control, stabilitrack and abs errors.

Rocket Man, any chance you'd be willing to rent or sell that tool?? J45860 if I'm reading the manual correctly.

Guess I can recall this, I just ordered a Reman Rear Diff with the rings in it already. Ring gear and axle are showing wear so I'm just replacing the whole thing.

 

[rockola1971]

My man done went crazy with the puller and straight up pulled the ABS tone ring right out! Now thats one ive never seen before!

 

[89Suburban]

Rocket Man, any chance you'd be willing to rent or sell that tool?? J45860 if I'm reading the manual correctly.

Guess I can recall this, I just ordered a Reman Rear Diff with the rings in it already. Ring gear and axle are showing wear so I'm just replacing the whole thing.

Where did you buy that from?

 

[Rocket Man]

Rocket Man, any chance you'd be willing to rent or sell that tool?? J45860 if I'm reading the manual correctly.

Guess I can recall this, I just ordered a Reman Rear Diff with the rings in it already. Ring gear and axle are showing wear so I'm just replacing the whole thing.

PM sent.

Where did you buy that from?

eBay, used.