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Old 10-11-2022, 09:23 AM #1
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CV axle seals

Hey guys,
Iíve got a 98 Limited that Iím going to be changing the CV axle out on the drivers side and was wondering if I should also be changing out any seals as well. If so, what are the names and/or part numbers? I appreciate any and all help. Thanks
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Old 10-11-2022, 01:23 PM #2
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Regardless of mileage, I would change out the seals because of their age. You can google the part number or go to a toyota parts website and type in your vehicle's info and find them that way.

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Old 10-11-2022, 01:29 PM #3
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Yes, I would recommend you change out the differential seals. Rolling the dice and not changing them out bit me in the butt when working on my friends GX470. After replacing the CV axles, we noticed one of the axle seals was leaking so we had to do all the work over again to remove the CVs to access the seals.

Watch this video and it will give you mostly everything you'll need to know. The parts are listed in the video description along with the tools used.





But, for the seal insertion, you should watch this video we did on a GX470. We feature an awesome tool made by the Wit's End company that makes the seal insertion easy and foolproof.





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Old 10-11-2022, 02:11 PM #4
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Just be careful not to set them too deep. I used the old seal taped to an Oil Filter wrench as my installation tool since I didn't have a seal driver. The secret is to only push it to 5mm depth. I installed one like 10mm and it leaked immediately. I have been running SKF (Napa) seals for a year now with no problems. And I wheel like my truck owes me money....
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Old 10-11-2022, 05:22 PM #5
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Just be careful not to set them too deep. I used the old seal taped to an Oil Filter wrench as my installation tool since I didn't have a seal driver. The secret is to only push it to 5mm depth. I installed one like 10mm and it leaked immediately. I have been running SKF (Napa) seals for a year now with no problems. And I wheel like my truck owes me money....
This tool that I mentioned in my comment above eliminates all the worry about how deep you install the seal. You drive the seal in until the installation puck makes contact with the housing and you're done. It makes the seal insertion easy and perfect every time.

I'm an OEM seal guy and personally wouldn't use aftermarket unless that's all that was available.

Toyota 4WD IFS Output Shaft Seal Driver (ASD-2)
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Old 10-11-2022, 07:05 PM #6
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The Napa seals do work fine in a pinch, i had them on my old diff, I think theyíre more expensive than oem though, I only use parts store stuff in an emergency
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Old 10-11-2022, 09:09 PM #7
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This is great information. Thanks guys, this site is so helpful and Iím grateful for everyoneís input. Cheers
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Old 10-12-2022, 08:58 AM #8
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Quote:
Originally Posted by mtbtim View Post
This tool that I mentioned in my comment above eliminates all the worry about how deep you install the seal. You drive the seal in until the installation puck makes contact with the housing and you're done. It makes the seal insertion easy and perfect every time.

I'm an OEM seal guy and personally wouldn't use aftermarket unless that's all that was available.

Toyota 4WD IFS Output Shaft Seal Driver (ASD-2)
+1 on OEM seals only. They're like 50 bucks for both of them, roughly. Go oem and you'll get another 300K out of them! You will thank yourself later.

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Old 10-12-2022, 03:54 PM #9
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Originally Posted by JoeT4R View Post
+1 on OEM seals only. They're like 50 bucks for both of them, roughly. Go oem and you'll get another 300K out of them! You will thank yourself later.

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I try to use OEM whenever possible, but my closest dealer gives no break on parts, actually charges above MSRP for anything they have to order. They don't stock a lot of stuff for 3rd gens, so I just don't bother.

I have had great luck with SKF seals. I compared them to some OEM seals, and they are so close, I can't tell.

The way I wheel my truck, it's likely I'll end up rebuilding the diff before the seals wear out anyway. I think it's like 24 bucks for both seals from Napa.

I think I will pick up that seal installation tool though. I have a lot of friends with 3rd gens, so I anticipate I'll be changing one sooner or later for someone.

Edit - That Seal installer is OUT OF STOCK right now. Got any alternative link?
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Old 10-12-2022, 04:21 PM #10
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Quote:
Originally Posted by shadow247 View Post
I try to use OEM whenever possible, but my closest dealer gives no break on parts, actually charges above MSRP for anything they have to order. They don't stock a lot of stuff for 3rd gens, so I just don't bother.

I have had great luck with SKF seals. I compared them to some OEM seals, and they are so close, I can't tell.

The way I wheel my truck, it's likely I'll end up rebuilding the diff before the seals wear out anyway. I think it's like 24 bucks for both seals from Napa.

I think I will pick up that seal installation tool though. I have a lot of friends with 3rd gens, so I anticipate I'll be changing one sooner or later for someone.

Edit - That Seal installer is OUT OF STOCK right now. Got any alternative link?
Joey Romero who owns the company is in the process of getting more made. I'll contact him and ask him for an ETA.
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Old 10-12-2022, 05:24 PM #11
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Quote:
Originally Posted by shadow247 View Post
I try to use OEM whenever possible, but my closest dealer gives no break on parts, actually charges above MSRP for anything they have to order. They don't stock a lot of stuff for 3rd gens, so I just don't bother.

I have had great luck with SKF seals. I compared them to some OEM seals, and they are so close, I can't tell.

The way I wheel my truck, it's likely I'll end up rebuilding the diff before the seals wear out anyway. I think it's like 24 bucks for both seals from Napa.

I think I will pick up that seal installation tool though. I have a lot of friends with 3rd gens, so I anticipate I'll be changing one sooner or later for someone.

Edit - That Seal installer is OUT OF STOCK right now. Got any alternative link?
I just got a message back from Joey and he has 80 of them headed to his anodizer. He gave me an ETA of 2 weeks.
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Old 10-13-2022, 01:03 PM #12
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Yeah, I checked yesterday and couldn't order it. I went today and you can pre-order it now....so I did!
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Old 10-14-2022, 11:03 AM #13
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Seals are available from the dealer network, you can even find them on Amazon for close to online dealer price

Front differential axle seal, L
90311-47013

Front differential axle seal, R
90311-47027
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Old 10-27-2022, 02:05 PM #14
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Semi-related question but I didn't want to start a new thread.

After coming back from a two day camping trip (with some relatively mild trails) I saw grease all over the passenger side front tire and noticed that the CV boot was ripped. I've only got 1" on the front, but with 250k on the original CVs I guess it was time. It's my DD, so I took off the next day - managed to get a new CV from Napa installed relatively easy. I didn't do the seals though, not enough time.

The thing that sorta freaked me out is that no oil leaked out when I popped the CV out, not a drop. After I got the new CV in I checked the oil level in the dip and it's good, right at the level of the fill plug. I had the 4Runner jacked up just high enough to get the tire off, could that have produced enough of an angle to keep the diff oil from leaking out? I'm just worried because every video I watched on the repair mentioned that oil would come out.

I'm gonna order those seal tools once they're back in stock and get that job done proper when I have more time (along with rebooting the old CV as a spare). But in the meantime, do I have anything to worry about with the diff? I can't drain the oil right now to see what it looks like due to a stripped drain plug, but it's clearly got enough in there, so I'm good, right?
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Old 10-27-2022, 03:30 PM #15
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Semi-related question but I didn't want to start a new thread.

After coming back from a two day camping trip (with some relatively mild trails) I saw grease all over the passenger side front tire and noticed that the CV boot was ripped. I've only got 1" on the front, but with 250k on the original CVs I guess it was time. It's my DD, so I took off the next day - managed to get a new CV from Napa installed relatively easy. I didn't do the seals though, not enough time.

The thing that sorta freaked me out is that no oil leaked out when I popped the CV out, not a drop. After I got the new CV in I checked the oil level in the dip and it's good, right at the level of the fill plug. I had the 4Runner jacked up just high enough to get the tire off, could that have produced enough of an angle to keep the diff oil from leaking out? I'm just worried because every video I watched on the repair mentioned that oil would come out.

I'm gonna order those seal tools once they're back in stock and get that job done proper when I have more time (along with rebooting the old CV as a spare). But in the meantime, do I have anything to worry about with the diff? I can't drain the oil right now to see what it looks like due to a stripped drain plug, but it's clearly got enough in there, so I'm good, right?
If you only jacked up the right side or one corner then you probably had enough angle to keep the gear oil in. As long as you checked the diff fluid level with the vehicle on all 4 tires and on level ground then nothing to worry about.
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