Scratching my head with this wheel bearing

[jetboy]

If anyone reading this is considering swapping rear hubs (dunno if they're different from the front hubs), there are currently 6 left in the US.

[Conn SVX]

I just sent a note to my friend in Dallas that still works in sales at Timken .

[Huskymaniac]

Can someone please indicate which of these parts should be replaced as part of the bearing/hub job?



27550B Tone wheel-rear w.abs
28315A Oil seal-front axle,outer
28315B Oil seal-front axle,inner
28335 Snap ring no.1
Snap ring no.2
28365 Bolt-hub
28386 Nut-axle
28413A Housing-rear axle,left with bushing
28416 Bearing-rear axle
28434 Cap-rear hub
28462 Hub-rear axle
M12007X Bolt-socket w.abs
S26001 O ring

And why are there two snap rings?

[icingdeath88]

Originally Posted by Huskymaniac

Can someone please indicate which of these parts should be replaced as part of the bearing/hub job?



27550B Tone wheel-rear w.abs
28315A Oil seal-front axle,outer definitely both seals
28315B Oil seal-front axle,inner
28335 Snap ring no.1 might as well, if it's cheap. mine were pretty rusty.
Snap ring no.2
28365 Bolt-hub
28386 Nut-axle
28413A Housing-rear axle,left with bushing not sure what this part is
28416 Bearing-rear axle but you don't have to get OEM
28434 Cap-rear hub
28462 Hub-rear axle obviously
M12007X Bolt-socket w.abs
S26001 O ring

And why are there two snap rings?

Those are what I'd order. I don't know why there are 2 snap rings listed, but if there's only one part number, I wouldn't worry about it.

[jetboy]

I ordered:

28016PA010
28015AA070
28015AA080
28044AA001

In addition, I got 28052PA010 for the actual hub. The parts dealer didn't think I needed more to replace the bearings and hubs (I ordered two sets).

OT summed it up in a thread, I took the info from that

[Huskymaniac]

Originally Posted by jetboy

I ordered:

28016PA010
28015AA070
28015AA080
28044AA001

In addition, I got 28052PA010 for the actual hub. The parts dealer didn't think I needed more to replace the bearings and hubs (I ordered two sets).

OT summed it up in a thread, I took the info from that

I get 28035AA010 for the snap ring part number, not 28044AA001. Not sure where the discrepancy is coming from.

[Huskymaniac]

I would like to thank Tom and Nate for taking my car for a test run at Reading. I am ordering parts, including a hub, for the bearing replacement.

Because of my concerns about incompatible grease I contacted the folks at Timken, the supplier of my prematurely failing bearing. Here is her reponse:

"Hello Anthony,

Some bearings do only come packed with sufficient grease for startup operation, but those are limited to Unit bearings on rear axles.

If you are worried about the amount of grease that comes supplied with the bearing, you would be surprised at how little of grease is suppose to be applied according to lubricant testing. Remember more is not always better, too much grease can cause churning and pressure build up that will cause the grease to purge and appear that the seals are not working properly.

If you are worried about the grease in the bearing and want to run the best lubricant you can, you should remove the old grease and replace with your preference completely, versus diluting the supplied grease with a different amount. Have a good weekend.

Sally McKiney | Sr. Catalog Analyst - Auto & Heavy Duty Aftermarket Group| The Timken Company"

So it sounds like Timken packs their bearings with decent grease and enough of it to just install them directly. Was the grease issue just with bearing purchased from Subaru? My mechanic said that they just install the bearings with the supplied grease unless otherwise instructed. I din't ask him if that was aftermarket bearings like Timken or all bearings including the ones supplied by Subaru.

She did confirm that the grease in the bearings should be cleaned out if re-packing with better grease.

Thoughts?

Also, my mechanic thought there might be a left hub and a right hub but the parts list and diagram implies that there is one hub for both sides. Is there one or two?