Rear Axle Seal & Bearing Job

[Timmy65]

Hey Dudes,

If you've discovered a Rear Axle Seal Leak or a problem with one of your Rear Axle Wheel Bearings, I have a video series that will help you out.

This is Part 1. Part 2 will be coming out soon.

Hope you Dudes enjoy it. Happy Wrenching!

 

[Timmy65]

 

[kevgentile]

Really diggin' that press tool. we're always having to come up with some concoction made up of old parts.

 

[Timmy65]

Really diggin' that press tool. we're always having to come up with some concoction made up of old parts.

Yeah, having these special service tools is very nice. I couldn't imagine doing the job without them. Duane even sells his toolsets to dealerships which tells me not even Toyota Techs had access to tools like this before Duane came along. I think most shops cut the parts off and sometimes cut too deep screwing up the axle.

 

[nissanh]

Hey Timmy, this is nissanh from t4r.org. I used Duane's tool based on your recommendation and it worked flawlessly in doing the 4R rear axle. I then contacted Duane and helped him to get the dimensions of the bearing carrier housing of the 100 series off of two axles I pulled from a wracked 100.

 

[Timmy65]

Hey Timmy, this is nissanh from t4r.org. I used Duane's tool based on your recommendation and it worked flawlessly in doing the 4R rear axle. I then contacted Duane and helped him to get the dimensions of the bearing carrier housing of the 100 series off of two axles I pulled from a wracked 100.

Thanks for helping Duane with those measurements. That custom plate he makes to bolt the main tool to the bearing case fit perfectly.

 

[Timmy65]

Part 2 is Live! See Post #2.

 

[ericbauer]

never mind ... my bad

 

[Timmy65]

Hi all

Does someone have a list of the Toyota part numbers for a rear axle seal & bearing job ?

I'm looking at the local Toyota dealer rear axle parts page and it seems like it is missing some items shown in the FSM
Screenshots below

So far, I have:

90369-48001 Rear Wheel Bearing
90313-62001 Axle Shaft Seal
90310-58002 Axle Shaft Seal
42423-60040 Retainer
42423-60030 Retainer

It's not clear which of the two retainer p/n's listed above is the one that can be re-used in Tim's video above ...
Maybe someone who has done the job can chime in ?

Can someone confirm if 43425-60010 is the correct snap ring ?

I don't have a part number for:
_ the FSM shows a rubber O-ring in addition to the oil seal that is inside the end of the axle housing
_ the axle / backing plate serrated bolts
_ the plate washer that goes between bearing retainer and wheel bearing
_ the gasket for the oil deflector
.. does someone have those ?

I'm not seeing a Rear Axle seal thread in the FAQ - maybe this could be it Admins ?

View attachment 3625393

View attachment 3625394

View attachment 3625400

In the video description I list all the parts. The outer retainer is reusable as well as the ABS tone ring. You can even reuse that cupped or spring washer that goes between the bearing and outer retainer.

Are you dealing with rust? There is no reason to replace the axle studs. They can be reused. There is also no reason replace the oil deflector gasket.

 

[ericbauer]

never mind ... my bad

 

[Timmy65]

Yes @Timmy65 both videos are great, super helpful, but unless I’m missing something you didn’t list the part numbers for all the required parts from Toyota to do the job, or …. ?

I don't know how I can assist you further. The videos have everything you need. I think you want to replace parts that don't need replaceing and that's certainly your prerogative.

 

[take123]

Nice vid! Was looking for a clear video as going to tackle this next. Having the right tools sure makes it easier.

 

[Timmy65]

Nice vid! Was looking for a clear video as going to tackle this next. Having the right tools sure makes it easier.

Good luck with the job.

 

[arcteryx]

@Timmy65 (or anyone else).

First, good video, both parts. I did order the full set from Duane and it has worked great.

I am running into a problem- when I seat the outer seal, it ends up moving when being pressed in. There appears to be play in the bearing/bearing housing, which is not a pressed fit, and the bearing slides in the housing. The pic shows the gap when the bearing is pressed on as far as it should (where the snap ring indentation is), but the seal is up in the oil slinger. The video shows the play when I lift it up with my feet (can't record and lift . Everything is pressed in except the retainer/abs ring which is the last thing to press.

Perhaps the play is ok and will tighten up with everything installed, but the concern is the seal may not seat correctly then. I first did this after putting pressing everything on and torquing the 4 axle bolts then noticed the seal was not straight, so I redid everything thinking I may have made a mistake. Second time, same result. The only other thing I can think of is I perhaps I put too much axle grease on the base of the gasket? It was a thin layer thinking it would help seal it and make it stick.

Thoughts?

Video 100 Series Rear Axle - https://photos.app.goo.gl/1wPDdsfKfwpSuwCx6

 

[nissanh]

Is the bearing OEM?
Does the axle slides in and out once you get the entire half axle into the axle housing and snug with 4 bolts? you have to do it to get the sharpie test.

 

[arcteryx]

Is the bearing OEM?
Does the axle slides in and out once you get the entire half axle into the axle housing and snug with 4 bolts? you have to do it to get the sharpie test.

Yes it is a KOYO, same as what was pulled.

I don’t recall if there was play when I did it the first time or not, I want to say no? But I was not looking for that so I may be wrong.

To clarify, I put everything back and did the sharpie test the first time. Only when I was reinstalling the parking brake did I notice the seal was not seated correctly in the housing which is why I pulled everything and did it a second time. And currently it is not seated at all after it moving it a few times. There has to be a way to keep the seal stationary while everything else is pressed on and reassembled….

 

[nissanh]

Was the Koyo in TOYOTA box or in a KOYO box? the two have very different qualities and specs.. ask me.. I know how.
Please check the width of the old bearing and the newer bearing. I think the koyo you bought was not in OEM toyota and is smaller in width.

The issue you are having is the bearing is sliding back and forth inside the bearing case/housing, correct? the oil seal inside the axle housing should not move.

 

[arcteryx]

Was the Koyo in TOYOTA box or in a KOYO box? the two have very different qualities and specs.. ask me.. I know how.
Please check the width of the old bearing and the newer bearing. I think the koyo you bought was not in OEM toyota and is smaller in width.

The issue you are having is the bearing is sliding back and forth inside the bearing case/housing, correct? the oil seal inside the axle housing should not move.

It was not a Toyota label KOYO, but KOYO box. I have never had any issues with OES parts. I did measure with my digital caliper and they are the same in width and height. What was the issue you encountered? Or perhaps the bearing housing has widened????

Correct on the issue that I am seeing.

 

[nissanh]

Was the Koyo in TOYOTA box or in a KOYO box? the two have very different qualities and specs.. ask me.. I know how.

It was not a Toyota label KOYO, but KOYO box. I have never had any issues with OES parts. I did measure with my digital caliper and they are the same in width and height. What was the issue you encountered? Or perhaps the bearing housing has widened????

Correct on the issue that I am seeing.

Not related to a LC: I was pressing in rear axle bearing OEM toyota box for our hilux, it had a slight play out of the box but being a toyota part I was ok. Then another was pressing a koyo bearing (in a koyo) box into a Hiace. The shop guy I know said see the difference before and after. Koyo in koyo box had no play out the box but was tight after pressing in (tight to spin the backing plate). On the other hand toyota boxed koyo, once pressed in has absolutely no play and smooth when the backing plate was spun. Toyota make their suppliers to follow their very specific standards precisely keeping all tolerances.

How easy/difficult for you to pull the old bearing out the bearing housing?

The amount it slides in and out of the bearing case/housing i yours is unprecedented. I have two spare axles (pulled from a rolled cruiser), I'll have a look at those. will get back to you today or tomorrow. I still believe the diameter on that koyo is not correct.

 

[Timmy65]

@Timmy65 (or anyone else).

First, good video, both parts. I did order the full set from Duane and it has worked great.

I am running into a problem- when I seat the outer seal, it ends up moving when being pressed in. There appears to be play in the bearing/bearing housing, which is not a pressed fit, and the bearing slides in the housing. The pic shows the gap when the bearing is pressed on as far as it should (where the snap ring indentation is), but the seal is up in the oil slinger. The video shows the play when I lift it up with my feet (can't record and lift . Everything is pressed in except the retainer/abs ring which is the last thing to press.

Perhaps the play is ok and will tighten up with everything installed, but the concern is the seal may not seat correctly then. I first did this after putting pressing everything on and torquing the 4 axle bolts then noticed the seal was not straight, so I redid everything thinking I may have made a mistake. Second time, same result. The only other thing I can think of is I perhaps I put too much axle grease on the base of the gasket? It was a thin layer thinking it would help seal it and make it stick.

Thoughts?

Video 100 Series Rear Axle - https://photos.app.goo.gl/1wPDdsfKfwpSuwCx6


View attachment 3729425

I talked about the issue we had with that outer seal becoming displaced from the bearing case when pressing the axle shaft into the bearing. I assumed it was because I used too much grease on the bearing and axle shaft and the excess grease pressure pushed the seal out. Did you use minimal grease when you did the press work? If I do this job again, I'm going to use only a very slight amount of grease to lubricate the parts so they slide together easier. A very very thin film. I've used gobs of grease in the past with other Toyota axles without this issue, so it is kind of weird it happens with these 100 Series axles. I also usually put some grease on that outer seal to allow it to seat easier into the bearing case, but I think for these 100 series axles, I would insert the seal dry so it's less likely to become displaced.

The bearing is not a press fit inside the bearing case. It can slide in and out. It's a tight fit, but not a press fit.