Rear axle seals

Michael Owner/Technician Quakertown, Pennsylvania Posted   Latest   Edited  
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Drivetrain
2010 Jeep Wrangler Sahara 3.8L (1) 4-spd (42RLE)

We have a customer inquiring about replacing both rear axle seals. Now, I have not verified this is needed yet but isn't there something "different" about these that it requires special tools/procedures to do this? I though the seal was actually pressed on. I also can not find any service info on replacing these rear axle seals.

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Phillip Diagnostician
Anchorage, Alaska
Phillip Default
   

Yes the rear axle bearing and collar is pressed on and off. From the wheel it goes axle shaft retainer, seal, bearing, bearing retainer/collar. Its like 1.5-2 to do one side.

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George Owner/Technician
Skagway, Alaska
George Default
 

Don't let the fact that it requires a press stop you. You can hit the collar/retainer with a grinder and cut a line across it and then hit it with a chisel and hammer to break it off. When installing the new bearing I have heated them in an oil bath and they mostly just drop on. I also have a long piece of pipe that can slide over the axles and then I can tap it down to seat it. A press is…

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Daniel Owner/Technician
Ingleside, Texas
Daniel Default
 

...Just don't forget the plate goes on first,then the seal,then the bearing and lastly,the collar...Nothing quite as disheartening as forgetting the plate...that would require ANOTHER bearing...Dan H. ...South Texas...

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George Owner/Technician
Skagway, Alaska
George Default
 

That sounds like experience talking. I've done that on a toyota once.

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Troy Owner/Technician
Longbranch, Washington
Troy Default
 

HATE it when that happens

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Charles Owner/Technician
Barnstable, Massachusetts
Charles Default
 

And, if I recall, take a good look at the sealing surface on the axle. If it is grooved, just get a whole new axle shaft assembly.

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Charles Owner/Technician
Barnstable, Massachusetts
Charles Default
 

And also look for pitting. Here in the northeast we usually see rust creeping on the shaft where the seal rides

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Rob Owner/Technician
Nanaimo, British Columbia
Rob Default
 

I'll add that to install the retainer just heat it up with a torch and drop it on,it will shrink to fit as it cools. DO NOT press them on.

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Daniel Owner/Technician
Ingleside, Texas
Daniel Default
 

...Good Idea Rob...Dan H. ...South Texas...

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Rob Owner/Technician
Nanaimo, British Columbia
Rob Default
 

I saw the results of one retainer that was pressed on years ago,Two weeks after having the bearing replaced on an older Ford pick up truck the vehicle was towed back in to the shop with the axle hanging out of the differential. I had warned the tech to install the retainer by heating it up and installing it much like doing a ring gear replacement. He argued with me saying he didn't need…

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Benjamin Owner/Technician
Woodstock, Georgia
Benjamin Default
 

Interesting! this Set up sounds just like Toyota, which I’ve pressed them all. I wonder if I should be heating the retainers on Toyota? On Toyota, the retainer exact position is Critical

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Michael Owner/Technician
Quakertown, Pennsylvania
Michael Update
 

Thank you for all the advice guys!

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Eric Owner/Technician
Edgerton, Wisconsin
Eric Default
 

I have to ask, where are you looking that you can't find service information on this procedure? Even though you received info on replacing the bearings and seals you will still need torque specs to properly complete the job.

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Michael Owner/Technician
Quakertown, Pennsylvania
Michael Default
 

Eric, Alldata is where I can't find it.

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Eric Owner/Technician
Edgerton, Wisconsin
Eric Default
 

Well, contact them and request it. Make them work for your money just like you have to. :-)

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Michael Owner/Technician
Quakertown, Pennsylvania
Michael Default
 

roger that!!

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Charles Owner/Technician
Barnstable, Massachusetts
Charles Default
 

Btw, you might find these as an option. jegs​.​com/i/Spicer/094/2…

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Matthew Mobile Technician
Bartlett, Illinois
Matthew Default
 

I am sure there are online sources for these too, but our local axle rebuilder sells the whole axle shaft with new seal and bearing already installed. They are cheap compared to buying seal and bearing plus labor. And if the seal is leaking, chances are there is a groove in the axle anyway and it needs to be replaced. This style of rear axle does not give you room to reposition the seal, so if…

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