Off topic but need diff help fast.
Thread Starter
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Master of Strokes
Joined: Mar 2007
Posts: 6,808
Likes: 25
From: CA
Off topic but need diff help fast.
Hello every one.
Just went got New shoes for the truck and while they were changing the tires they point out a diff leak
This is the last thing I need now cause I need the truck thursday to go get the 450 in oregon. It's not leaking from the cover but from where the drive shaft goes into the diff 
I also just noticed that if I come to a complete stop and then go I feel this grinding sensation from my seat? What does this mean
Thanks
Nick
Just went got New shoes for the truck and while they were changing the tires they point out a diff leak
This is the last thing I need now cause I need the truck thursday to go get the 450 in oregon. It's not leaking from the cover but from where the drive shaft goes into the diff I also just noticed that if I come to a complete stop and then go I feel this grinding sensation from my seat? What does this mean
Thanks
Nick
Thread Starter
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Master of Strokes
Joined: Mar 2007
Posts: 6,808
Likes: 25
From: CA
Is this a low fluid thing and I would call it grabbing feeling.
you can't fix stupid!
Joined: Mar 2008
Posts: 1,906
Likes: 2
the pinion seal is no big deal most shops will replace it for like 100 bucks or so but you will need a special socket, well not really special but whatever size the nut is and then it has to be lathed down a little to fit in the hole. that and it needs like 400 lbs of torque when re-tightening. could the grinding/clunking be his slip joint needing lubed?
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
It's definitely the seal, and it a bit of a PITA to change. I did mine a couple months ago when I did my '08 rear diff cover. You need a harmonic balancer puller, and a 1" socket. You also need to mark the nut and count how many turns it took to get it off. When you put it on, take it to the mark and about an 1/8th of a turn further.
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Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
the pinion seal is no big deal most shops will replace it for like 100 bucks or so but you will need a special socket, well not really special but whatever size the nut is and then it has to be lathed down a little to fit in the hole. that and it needs like 400 lbs of torque when re-tightening. could the grinding/clunking be his slip joint needing lubed?
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Postmaster
Joined: Jul 2004
Posts: 3,156
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From: Yuba City, CA.
It's definitely the seal, and it a bit of a PITA to change. I did mine a couple months ago when I did my '08 rear diff cover. You need a harmonic balancer puller, and a 1" socket. You also need to mark the nut and count how many turns it took to get it off. When you put it on, take it to the mark and about an 1/8th of a turn further.
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Joined: Jun 2009
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Remember, when you know something is going out you begin to become critical of every sound and feeling.
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Post Fiend
Joined: Feb 2007
Posts: 7,191
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From: Blairsville,Ga
You shouldn't have any major problem then,mine leaks a few ounces a year.Been that way about 7 years since the rear carrier was replaced
Freshman User
Joined: Jul 2009
Posts: 45
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From: DFW area
you might want to check the u joints. had the same type noise on my jeep once and after searching and searching it turned out to be a busted joint. get it changed fast if thats it to avoid the shaft coming off.