How about this, I think it touches, if not there will be less than one hair deeper.Put a straight edge across the end of the tube. If the sharp rubber lip of the seal touches it, you are good. Any deeper and it will likely leak.
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How about this, I think it touches, if not there will be less than one hair deeper.Put a straight edge across the end of the tube. If the sharp rubber lip of the seal touches it, you are good. Any deeper and it will likely leak.
forum.ih8mud.com
Thanks man, you mean the black arrow pointed seal edge should align or a little above the blue arrow pointed hosing inner edge, it this correct? I bought another two "cats", I am heading to pick them up, I believe I will do it right in another two chances...Yep- too deep
Theres a couple of ways to skin this cat. I think its easier to use the edge of the race as the reference point for setting seal depth. If you read back through this thread you’ll find some answers. The face of the seal (flat area) which is set even or slightly above the edge of the race.
See here
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Front Drive Shaft / Differential leak; Oil Seal & dust cover replacement
You want to pay attention to the flat surface of the seal- and where it sits in relation to the edge of the race ( the raised lip of the seal is a useless reference point ).forum.ih8mud.com
I think this time is about perfect. The inner race depth is about 5 mm, the seal this time from 4 points measurements about 4.75 to 4.92, means is almost flush and tiny above the race edge. It also proved that the outer edge of the seal will be about 1mm out of the tube as the sec pic shows.Yep- too deep
Theres a couple of ways to skin this cat. I think its easier to use the edge of the race as the reference point for setting seal depth. If you read back through this thread you’ll find some answers. The face of the seal (flat area) which is set even or slightly above the edge of the race.
See here
![]()
Front Drive Shaft / Differential leak; Oil Seal & dust cover replacement
You want to pay attention to the flat surface of the seal- and where it sits in relation to the edge of the race ( the raised lip of the seal is a useless reference point ).forum.ih8mud.com
This is where hard wood pays off. The 3/4 X 1 1/2 " does fit and catches the thinner lip of DS on diff. With soft wood, you'll not feel it catch the lip and over drive in seal..I just reached there, I think what we talked "using a wood stick" as a drift will be difficult for this "tube/driver" side, because the lip of this side so small, maybe too small to stop the wood stick when punch on it..
I finally use a 2 inch ID pipe for getting this done. But I do believe "wood tech" will work very nicely for the passenger side. Man..I am not handy like you...my hand has no such a good feeling about things... Anyway, thank you so much!This is where hard wood pays off. The 3/4 X 1 1/2 " does fit and catches the thinner lip on DS diff. With soft wood, you'll not feel it catch the lip.
Yes, works either side. 3/4' width X ~1/1/2" x 24" oak (hard wood, holds it's form for many seal jobs) stick is best. Oak hits inner shelve of diff, which is right were seal seats.
LH side, I work a bit faster. If I seat to far in, I pry back out. The LH seal has metal plate on back side and diff tube has center protrusion I angle off of, to pry back out seal to square off if i need to. RH side, I take more time to not over shoot (seating seal in to far), getting seat perfect first time.
Most important is seal must be seated squarely. If cocked-eyed, it will likely leak. If in or out .5mm -+ but squarely seated, it will likely not leak.
I've done more than I can remember. Not one has leaked.
Often guys get seal in okay. Only to knock out of alignment installing front drive shaft.
Did you try it?I may have solved the seal installation issue. It works on both sides (different seals) and works on all Toyota 4WD IFS trucks.
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Toyota 4WD IFS Output Shaft Seal Driver
Toyota 4WD IFS Output Shaft Seal Driver (ASD-2)absolute-wits-end.com
This is where hard wood pays off. The 3/4 X 1 1/2 " does fit and catches the thinner lip of DS on diff. With soft wood, you'll not feel it catch the lip and over drive in seal..
In either the first seating of seal which was a little deep or second which was a little shallow. Those were both fine. That's the ~0.5mm -+ (1mm) I wrote about earlier. By looking at wear mark on old FDS, you'll see where seal was riding. You'll see the area seal rides on width, allows for movement in and out of FDS and then some.
Again; Key is square (level). So as you move your straight edge around to various points, provided your seal hit same point on straight edge always. You are squarely seated (perfect).
As much as you're concerned with every detail. It will be fine. You've done well.
If my seal leaks then I’ll probably end up buying this tool as well. The oak stick worked okay but I can see how this would be so much better!I tried out my new to me; Wits'end seal install drift tool today. Love it!
It fits perfect and very snug, which is critical on DS with it's very narrow seating shelf..
View attachment 2722099
I used a common scraper to clean away built up grim, from seating shelf. A critical step, to insure seal seats flush as drift seats on shelf. Then I made use of a very heavy hammer with extra long wooden handle. Holding hammer head in my hand and tapping on the seal drift with butt end of handle. Worked fast and seated perfectly.
It will be and even better tool, once Witsend has the long handle available for sale. As I'd like sit back out side wheel well and tap in. A 22" or 24" extension should do the trick. 20" would probable do with knuckle out. But for those time install is while knuckle in, the extra 2 to 4" would be nice.
View attachment 2722091
View attachment 2722094
View attachment 2722095
View attachment 2722098
Using the short cut it took me ~25-30 min to get axle out of tube. True to reports. I coulda been a little bit faster because I had to put the knuckle back on the UCA ball joint to get the tie rod end connectors off.
Now I am in and I so clearly got the seal in to far. When installing I was worried about not getting it in enough. I did lube the outside of the seal with gear oil before putting in, but it does not move freely.
View attachment 1786492
It sounds like it should be flush with the inner lip. where the clean metal stops way in the above picture. There also isn't alot of room to get a pry bar or screw driver behind the seal w/o leveraging against the inner tube. I will try some gentle things to try and back it out without damaging the seal, but if it doesn't work I will probably cover this up, get a new seal tomorrow and then snip out the old-new seal. Thoughts?
You mean this?@NLXTACY My left IFS output shaft seal just started leaking. It did great for a year, trip to Colorado and back, but decided to start leaking this week.
I have the tool and the short extension. Is the long extension available? If yes, I need to order one right now.