Rear pinion seal

68ss

Active member
Dec 30, 2019
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Brooklet, Ga
So I replaced this seal about 4 thousand miles ago with I think a yukon gear set. What would cause the inner seal to do this?
 

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PureHybrid

Isuzu Shakes IT
Feb 15, 2012
3,886
800
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Central OH
Did you assemble it correctly? Looks like the wear sleeve is in front of the entire seal? Why was it taken apart, a leak? I did have just last week a National seal leaked between the steel and rubber joint, didn't even make it down the road
 

68ss

Active member
Dec 30, 2019
156
75
28
Brooklet, Ga
Did you assemble it correctly? Looks like the wear sleeve is in front of the entire seal? Why was it taken apart, a leak? I did have just last week a National seal leaked between the steel and rubber joint, didn't even make it down the road
can you explain more? I reinstalled it the same way as it came out
 

PureHybrid

Isuzu Shakes IT
Feb 15, 2012
3,886
800
113
Central OH
can you explain more? I reinstalled it the same way as it came out
Well idk, now I'm confused. I looked up the part # you have in the picture and I'm not sure how that's supposed to work.

I've always used the two piece setup that you drive a wear sleeve onto the yoke and a standard type pinion seal into the housing.

Screenshot_20260404-222003_Chrome.jpg

Screenshot_20260404-222206_Chrome.jpg
 

2004LB7

Super Moderator
Staff member
Dec 15, 2010
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Norcal
Almost looks like the seal was spinning in the bore, which doesnt happen. Does it?
That was my thought too. That's why I asked if he lubed it. If it stuck to the pinion shaft, it would turn the whole seal and tear out somewhere.
 

2004LB7

Super Moderator
Staff member
Dec 15, 2010
8,551
3,058
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Norcal
Well idk, now I'm confused. I looked up the part # you have in the picture and I'm not sure how that's supposed to work.

I've always used the two piece setup that you drive a wear sleeve onto the yoke and a standard type pinion seal into the housing.

View attachment 135227

View attachment 135228
My 08 that I did didn't have a wear sleeve. Just right onto the pinion shaft
 

68ss

Active member
Dec 30, 2019
156
75
28
Brooklet, Ga
I think I figured out what I done wrong. I did not set the sleeve on the yoke first. I put the sleeve. The seal and then installed the yoke. I think it was not installed far enough on the yoke. I did install a gm seal this time but I do think this is totally on me