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  #16  
Old 10-17-2011, 01:23 PM
ranger101 ranger101 is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

Doing this tomorrow but I have questions...

1. On the front diff the filler hole is on the left side of the diff right?
2. Did we ever figure out a torque spec for the nut?

I was just going to use a micrometer and an impact to get it to the factory specs like Scott did.
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  #17  
Old 10-17-2011, 01:49 PM
lovemud lovemud is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

nice wright up man easy to fallow
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  #18  
Old 10-17-2011, 04:17 PM
dixie_boysles dixie_boysles is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

Quote:
Originally Posted by ranger101 View Post
Doing this tomorrow but I have questions...

1. On the front diff the filler hole is on the left side of the diff right?
2. Did we ever figure out a torque spec for the nut?

I was just going to use a micrometer and an impact to get it to the factory specs like Scott did.
There is not a torque spec on the nut. U just need to put it back the way u took it off unless u wanna drop the axle and replace the crush sleeve with the right preload on the bearings.
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  #19  
Old 04-29-2012, 09:04 PM
mazda12 mazda12 is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

would this be the same process as the front diff seal? pinion seal?
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  #20  
Old 04-30-2012, 07:08 AM
BILLIBOY BILLIBOY is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

There is always a certain amount of "run-out" on the diff flange and on the driveshaft flange. They measure this at the factory and install the driveshaft so that the run out is opposite to the run out on the diff. This results in the driveshaft being centered as close as possible. No rotating part is ever absolutely perfect, there is always a bit of out of round to deal with, that is why it is good practice to mark the parts and put them back exactly where they were from the factory.
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  #21  
Old 09-18-2013, 05:29 PM
quarter pounder quarter pounder is offline
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Default

Just did this to my 2.3l banger. Thank u guys so much for the posts. I had a hell of a time getting that flange and seal off, but they did come off. Replaced the seal and no leaks as of yet.

To those that are skeptical... JUST DO IT. It's not that bad.
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  #22  
Old 12-16-2013, 02:11 PM
NewShockerGuy NewShockerGuy is offline
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Arrow Re: HOW TO: Replace Rear Pinion Seal

Quote:
Originally Posted by quarter pounder View Post
Just did this to my 2.3l banger. Thank u guys so much for the posts. I had a hell of a time getting that flange and seal off, but they did come off. Replaced the seal and no leaks as of yet.

To those that are skeptical... JUST DO IT. It's not that bad.
Glad I found this thread!

Did you replace JUST the seal? Mine is leaking and I am tired of it...lol Plan on doing this when I get back from vacation.

Any pointers you might have other than what is mentioned here? I also have a 2.3l

Thanks,
-Nigel
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  #23  
Old 12-17-2013, 06:48 AM
quarter pounder quarter pounder is offline
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Nigel-

There are 2 places where your rear diff fluid can leak from. 1) the pinion seal & 2) the rear diff cover gasket.

After dropping driveshaft, I replaced my pinion seal first. then took off the rear diff cover, drained fluid, lightly cleaned, and reinstalled cover with gasket maker ( I don't think they make a replacement gasket for your rear diff.

An unbalanced driveshaft can cause your pinion seal to leak. My truck was in bad shape so after i removed the driveshaft, I took it to a place in town for them to balance it. Hasn't leaked since my last post!
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  #24  
Old 12-17-2013, 07:44 PM
dixie_boysles dixie_boysles is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

Quote:
Originally Posted by NewShockerGuy View Post
Glad I found this thread!

Did you replace JUST the seal? Mine is leaking and I am tired of it...lol Plan on doing this when I get back from vacation.

Any pointers you might have other than what is mentioned here? I also have a 2.3l

Thanks,
-Nigel
That's all I replaced. Just take your time.

Quote:
Originally Posted by quarter pounder View Post
Nigel-

There are 2 places where your rear diff fluid can leak from. 1) the pinion seal & 2) the rear diff cover gasket.

After dropping driveshaft, I replaced my pinion seal first. then took off the rear diff cover, drained fluid, lightly cleaned, and reinstalled cover with gasket maker ( I don't think they make a replacement gasket for your rear diff.

An unbalanced driveshaft can cause your pinion seal to leak. My truck was in bad shape so after i removed the driveshaft, I took it to a place in town for them to balance it. Hasn't leaked since my last post!
Yes they do make a new seal for your rear diff cover, its RTV sealant
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Last edited by dixie_boysles; 12-17-2013 at 07:47 PM.
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  #25  
Old 12-17-2013, 07:46 PM
Redneckstone Redneckstone is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

They actually make a gasket also
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  #26  
Old 01-28-2014, 07:13 PM
NewShockerGuy NewShockerGuy is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

I replaced the rear seal yesterday. Had more of an issue removing the drive shaft because it was rusted on the flange...lol

AFTER I removed the drive shaft I replaced both the rear seal on the tranmission since mine was all cracked and dripping tranny fluid. And then I replaced the seal. Prior to that though I did put a sleeve kit on the pinion flange... I saw on another forum if there was a line on the piece it's recommended to sleave it. I did and will check tonight to make sure there are no leaks.. (hoping there aren't) I am glad this how to was made!!

I've had that leaking rear diff since I bought the truck over 2 years ago and suspect that it was never changed the entire time the previous owner had it... It never leaked so much as to be a concern but I got tired of seeing a drop here and there in the garage/drive way. I notice it more every time I changed the rear diff fluid as it would always drip more for a couple weeks after I am guessing because there was more fluid in there.

This was the other thread for the sleeve.
http://www.therangerstation.com/foru...d.php?t=102444


Will update once I get home!

-Nigel
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  #27  
Old 11-16-2015, 10:00 PM
dio1985 dio1985 is offline
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Default Re: HOW TO: Replace Rear Pinion Seal

Hello everyone! Has anyone ever encountered pinion yoke not wanting to fully seat after replacing pinion seal? I have hammered and used impact tool to put yoke back onto pinion shaft but i get to a point where there is about 1/8" gap between flange and diff housing and i cannot get it to move anymore.. Would pinion bearing (not pressed on bearing but 2nd bearing past crush sleeve) cause this to happen? How can i get around this so i can put back together? Any help would be very much appreciated.
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