Need help identifying a part

[jfalcon]

Hi All,

So I am in the middle of my rear differential replacement and I am having trouble identifying a part needing to be replaced per my mechanic.

I did find the seal as shown.




But I am having issue identifying which part the metal ring is on the diagrams.



I thought it was the dust cover shield (inner) on the output axles, but I just looked under and both of them look same same.

So I am unsure where it goes to on the diagram as it appears the dust cover shields are fitted on the output axles themselves and come part of the axles.

You can see one of the metal rings is more chewed up than the other. It's slightly misshaped so wanting to replace it while everything is out.

Thanks!

[Henn28]

Originally Posted by jfalcon

Hi All,

So I am in the middle of my rear differential replacement and I am having trouble identifying a part needing to be replaced per my mechanic.

I did find the seal as shown.




But I am having issue identifying which part the metal ring is on the diagrams.



I thought it was the dust cover shield (inner) on the output axles, but I just looked under and both of them look same same.

So I am unsure where it goes to on the diagram as it appears the dust cover shields are fitted on the output axles themselves and come part of the axles.

You can see one of the metal rings is more chewed up than the other. It's slightly misshaped so wanting to replace it while everything is out.

Thanks!

Those look like the dust covers on the output shafts. E53 with the 188 “medium” diff, correct? I did a full rebuild except for the pinion shaft, which I didn’t pull because that bearing was in good shape, and the preload was decent. There is a dust cover on the pinion shaft, but only one I believe. The output shafts each have a cover on them that should have remained on them, unless the shaft was/were damaged. No sense taking them off unless the shaft splines or race were damaged, which would be unlikely I think. It looks like he bent one up as well, so you’ll definitely need new parts.

Fortunately FCP shows them as available still, for $51ish. Unfortunately it’s an OE part and comes from Germany…4 to 6 weeks. You may want to try getbmwparts.com as they can get OE stuff much sooner, and expedite from Germany if you need it soonest. They also tend to have good prices on OE stuff, but more recently I’ve had to follow up on orders that they neglected to process.

RealOEM shows it as “dust guard ring”, part number 33131428097. You can see them on the below pic.

[jfalcon]

Originally Posted by Henn28

Those look like the dust covers on the output shafts. E53 with the 188 “medium” diff, correct? I did a full rebuild except for the pinion shaft, which I didn’t pull because that bearing was in good shape, and the preload was decent. There is a dust cover on the pinion shaft, but only one I believe. The output shafts each have a cover on them that should have remained on them, unless the shaft was/were damaged. No sense taking them off unless the shaft splines or race were damaged, which would be unlikely I think. It looks like he bent one up as well, so you’ll definitely need new parts.

Fortunately FCP shows them as available still, for $51ish. Unfortunately it’s an OE part and comes from Germany…4 to 6 weeks. You may want to try getbmwparts.com as they can get OE stuff much sooner, and expedite from Germany if you need it soonest. They also tend to have good prices on OE stuff, but more recently I’ve had to follow up on orders that they neglected to process.

RealOEM shows it as “dust guard ring”, part number 33131428097. You can see them on the below pic.

E70 with the N62. Close as I can tell it is the dust shield (inner/small) that presumably then fits on the outside of the gasket/seal. Ordered what I hope is correct from ECS Tuning. We'll find out next week.

[jfalcon]

The diagrams suck for identification...




But it appears according to the diagram it is delivered as all one piece. Maybe it just came off when they were trying to lever the output shaft out of the rear diff?

[jfalcon]

And just because I know you guys will like this. Also will add to the story of my post from 2024-12-15. Guess this appears to be my problem.