turbodb
Member
After lunch and some parts clean-up, I was ready to start pressing components back together. This is essentially a reverse of removal, so the axle bearing was up first. A bit of grease on it's outer race and the matching bore so things would slip past each other easily, I used the bearing driver SST to support the brake backing plate, and a 3" ABS cleanout to carefully press in the bearing. It's not a tight fit, so the ABS works well - both as a match for the outer diameter of the bearing, and also because if you're deforming the ABS, you know you're doing something wrong.
After the bearing is in the brake housing, it was time to press that - and the outer retainer (which used to be the inner and has a wear mark on it) onto the axle. With the bevel on the retainer facing away from the bearing, I got everything set up using the Bearing Driver (and the Rear Wheel Axle Bearing Puller) and into the press before easily pressing everything together.
Then, continuing our reversal of the removal, a new snap ring before greasing and putting the ABS tone ring and inner (was outer) retainer in place to be pressed. Note: the tone ring is installed with the solid side toward the diff, and the retainer has the bevel away from the diff, to better mate with the axle seal that was redesigned by Toyota a few years ago.
And then, it was back to the press, where I once again used the Bearing Driver and the Rear Wheel Axle Bearing Puller to drive the two rings onto the axle. The key at this point is to ensure that the inner retainer ends up in the perfect position - so that the axle seal rides right in the middle of the flat surface. To achieve this, press the two rings on and utilize the fabulous access hole in the Bearing Driver SST to monitor the progress.
When you start to see polished axle showing below the inner retainer, slow down. You will ultimately want 3- to 5mm of polished axle showing in order for everything to line up. So when you get to 3mm - which you can measure with a 3mm Allen wrench - stop. I went to 5mm initially, and it was too far! (an easy fix with the Bearing Puller and Tone Ring tool, but something I could have avoided).
To see if the inner retainer was in the right place, it was finally time for me to replace the axle seal. And it was nearly 4:00pm! I headed out to the truck and attempted to pull out the old seal using some pliers. No success - the seal was in there good, and despite mangling the seal (while being very careful to not mangle the race), it wasn't budging.
Dang! I'd heard that using the slide hammer in the OTC 4579 Seal Puller Kit made this super-easy, but I'd decided I could probably get it out another way and save the hundred bucks. Dummy. I quickly realized my folly, but it was too late - getting the kit was going to take four days - time I didn't have - and so I did the only thing I could do - panic.
No, I'm kidding. I actually futzed around for a bit after looking at the design of the OTC kit and came up with what I can only call a contraption that I hoped would solve my problem - fashioned to hook the seal in a couple of places, then allowing me to hit the maple block with a hammer to pull it out.
It worked, terribly. So if you're reading this - just buy the OTC 4579 kit and don't lose a few years of life due to stress.
The seal might have been mangled, but it was out and I was relieved. I immediately set about installing the new seal - first heating the axle housing with a heat gun and freezing the new seal - just to give myself as much chance as possible to get it in easily.
It worked great, and seated just fine using the OTC 4507 Seal Driver Kit.
Having that done meant that I could test the position of my inner retainer on the axle, so I drew some lines with a marker and inserted the axle into the housing. A few turns to get the seal to rub off some of the marker, and I knew I had a problem.
I'd pushed the retainer on 5mm, but it was too far. It was back into the shop where I used the Rear Wheel Axle Tone Ring Puller (have I mentioned that this thing is awesome?) to quickly pull the retainer and tone ring 2mm up the axle. And the next test fit was perfect!
Now, it was just a matter of replacing the largest o-ring I've ever seen on the end of the axle housing, and then buttoning everything back up - torquing the nuts that hold the backing plate to the axle housing to 48 ft-lbs, and making sure the ABS sensor and brake line connections were "tight enough."
It was 5:30pm, and I'd finished the first side.
As one does, I figured it was the perfect time to start on the second side. :rofl:
It turns out of course, that I now had a better idea of what I was doing, and I didn't have to take any photos - so I was able to go a bit faster. And by a bit, I mean that I completed the entire process in about a quarter of the time - just under two hours - and with fewer mistakes.
By 7:45pm or so, I was buttoning everything up - the day a long one, but a successful one. I left refilling the rear diff with gear oil and bleeding the brakes for the following morning, but those things are easy enough to do that I wasn't at all worried.
It was dinner time, and I was famished. :hungry:
Of course, now that I've addressed the axle seals, my next project is replacing the rear brake shoes. You know, because the current ones are saturated with diff oil from the previously leaky seals. :frusty:
After the bearing is in the brake housing, it was time to press that - and the outer retainer (which used to be the inner and has a wear mark on it) onto the axle. With the bevel on the retainer facing away from the bearing, I got everything set up using the Bearing Driver (and the Rear Wheel Axle Bearing Puller) and into the press before easily pressing everything together.
Then, continuing our reversal of the removal, a new snap ring before greasing and putting the ABS tone ring and inner (was outer) retainer in place to be pressed. Note: the tone ring is installed with the solid side toward the diff, and the retainer has the bevel away from the diff, to better mate with the axle seal that was redesigned by Toyota a few years ago.
And then, it was back to the press, where I once again used the Bearing Driver and the Rear Wheel Axle Bearing Puller to drive the two rings onto the axle. The key at this point is to ensure that the inner retainer ends up in the perfect position - so that the axle seal rides right in the middle of the flat surface. To achieve this, press the two rings on and utilize the fabulous access hole in the Bearing Driver SST to monitor the progress.
When you start to see polished axle showing below the inner retainer, slow down. You will ultimately want 3- to 5mm of polished axle showing in order for everything to line up. So when you get to 3mm - which you can measure with a 3mm Allen wrench - stop. I went to 5mm initially, and it was too far! (an easy fix with the Bearing Puller and Tone Ring tool, but something I could have avoided).
To see if the inner retainer was in the right place, it was finally time for me to replace the axle seal. And it was nearly 4:00pm! I headed out to the truck and attempted to pull out the old seal using some pliers. No success - the seal was in there good, and despite mangling the seal (while being very careful to not mangle the race), it wasn't budging.
Dang! I'd heard that using the slide hammer in the OTC 4579 Seal Puller Kit made this super-easy, but I'd decided I could probably get it out another way and save the hundred bucks. Dummy. I quickly realized my folly, but it was too late - getting the kit was going to take four days - time I didn't have - and so I did the only thing I could do - panic.
No, I'm kidding. I actually futzed around for a bit after looking at the design of the OTC kit and came up with what I can only call a contraption that I hoped would solve my problem - fashioned to hook the seal in a couple of places, then allowing me to hit the maple block with a hammer to pull it out.
It worked, terribly. So if you're reading this - just buy the OTC 4579 kit and don't lose a few years of life due to stress.
The seal might have been mangled, but it was out and I was relieved. I immediately set about installing the new seal - first heating the axle housing with a heat gun and freezing the new seal - just to give myself as much chance as possible to get it in easily.
It worked great, and seated just fine using the OTC 4507 Seal Driver Kit.
Having that done meant that I could test the position of my inner retainer on the axle, so I drew some lines with a marker and inserted the axle into the housing. A few turns to get the seal to rub off some of the marker, and I knew I had a problem.
I'd pushed the retainer on 5mm, but it was too far. It was back into the shop where I used the Rear Wheel Axle Tone Ring Puller (have I mentioned that this thing is awesome?) to quickly pull the retainer and tone ring 2mm up the axle. And the next test fit was perfect!
Now, it was just a matter of replacing the largest o-ring I've ever seen on the end of the axle housing, and then buttoning everything back up - torquing the nuts that hold the backing plate to the axle housing to 48 ft-lbs, and making sure the ABS sensor and brake line connections were "tight enough."
It was 5:30pm, and I'd finished the first side.
As one does, I figured it was the perfect time to start on the second side. :rofl:
It turns out of course, that I now had a better idea of what I was doing, and I didn't have to take any photos - so I was able to go a bit faster. And by a bit, I mean that I completed the entire process in about a quarter of the time - just under two hours - and with fewer mistakes.
By 7:45pm or so, I was buttoning everything up - the day a long one, but a successful one. I left refilling the rear diff with gear oil and bleeding the brakes for the following morning, but those things are easy enough to do that I wasn't at all worried.
It was dinner time, and I was famished. :hungry:
- - - - -
Of course, now that I've addressed the axle seals, my next project is replacing the rear brake shoes. You know, because the current ones are saturated with diff oil from the previously leaky seals. :frusty:













