Rear axle bearings pics

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The breather is easy to check. Just pull it off and blow it, right @2001LC ? Or just preventatively replace?
Edit;So it suppose to let air out but not in? It is suppose to let air out.
 
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Just noticed that my driver side axle has a very minor leak. I skimmed through this thread really quick, but was just wondering if there are 2 oil seals that need to be replaced and if the bearing needs to be removed to get to an oil seal or just remove axle from hub? I am going to get tool to remove bearing assembly, but I pretty sure just fixing the leak with new oil seals should do thr trick..
 
You just need to remove the axle to get to the seal. There is O ring that should be replaced as well.
 
You just need to remove the axle to get to the seal. There is O ring that should be replaced as well.
So the press and bearing tools are just necessary to remove bearing from shaft and not to remove bearing from shaft to get to oil seal on shaft.. Sorry for the dumb question, I am about to dig up my fsm and see what's up... Just wanted a heads up...
 
So the press and bearing tools are just necessary to remove bearing from shaft and not to remove bearing from shaft to get to oil seal on shaft.. Sorry for the dumb question, I am about to dig up my fsm and see what's up... Just wanted a heads up...
The tool is to remove the bearing from the half axle. When you pull the half-axle off the housing, the oil seal stays inside the axle housing: the half axle comes out with the bearing.

Make sure you do the sharpie test: that is you draw few strokes of sharpie marks on the retainer ring (which runs on the oil seal lip). Then slide the axle into the housing and press it all the way in. You can mount two bolts on oppotite sides and tighten it (not 100%). spin the hub few rounds and take the axle out again and inspect the sharpie marks. The lip of the oil seal should ride right in the middle of the retainer ring as indicated by worn sharpie marks. If it is not centered, you want to adjust the location of the oil seal inside the housing.

Look for Timmy the tool man's 3rd gen 4runner rear axle video where he explains this sharpie test if you want to see the video.
 
^^^

Yes! See the difference in the ride surface of the oil seal lip at 10:48 (not centered) and 11:40 (centered and CORRECT)
 
This thread was really helpful for rebuilding my axles, thanks everyone.
I ruined the first inner axle seal that I tried to install (using a claw washer from the front hubs).
I ended up 3D printing a seal driver that's exactly the right diameter and depth. I uploaded the model here. This was faster and easier than going to dig through plumbing parts at the store. I put the seals in the freezer before the next attempts as well.

I then used part of the axle bearing press tool to drive that 3D printed seal driver in. This is obviously not necessary, but it worked great. It would be difficult to mess up a seal with this method.

PXL_20230205_192213540.webp


PXL_20230205_192241265.webp
 
Last night I had asked about the part numbers that were needed for this repair and continued to look.
I called the shop that completed the diagnoses, provided the estimate etc but they were unable/unwilling to share the part numbers. The advice was to call a local shop to explain the problem and ask for the numbers that way. This scenario bothered me quite a bit because the 1st shop should have either provided the #s along with the estimate (my fault for not asking then) but putting that effort onto another shop just seemed wrong.
Long story short I called a dealer I've purchased from a few times before and got the following info for handling the right side (some of the numbers may be different for the left):

oil seal (rear axle shaft outer)90313-62001
rear axle shaft bearing right90369-48001
oil seal 90310-58002
snap ring90520-44038
conical washer90208-48002
rear axle bearing inner retainer (2 diff?)42423-60030 & 42423-60040
o ring90301-85004
parking brake shoe46540-60050
brake shoe inner46550-60060
skid control rotor4317-60020
rotors (gear oil is on mine)42431-60281
pads (might as well)04466-60070
 
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Good tip. PVC works. I'll provide some details in a subsequent post.

I have a question though that I need help with. When the axle is all assembled, is there supposed to be about 2-4mm of play between the axle and the hub assembly? Its like the wheel bearing outer race has a little translation inboard and outboard. And the hub will shift back and forth depending on whether you have the axle resting of the diff/spline side vs the wheel stud side. And yes, the c-clip inboard of the outer retainer ring was properly installed.

It's enough to make the outboard dust seal get caught/stuck inside the oil deflector on the backside of the axle flange.

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In this last photo, I fought with the outboard dust seal to get it back against the hub, but if I tip the axle so that the wheel studs are on the floor, that seal will get pushed back into the oil deflector.
View attachment 2581103
What caused your axle play? I have the same issue.
 
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