Rear end roaring
Tuned
Joined: Jun 2003
Posts: 402
Likes: 1
From: Burlington, Maine
When I had it align, a Ford tech said that it was leaking. That's his .02. I definitely have a pinion seal leak, that's a no brainer. But since I'm replacing the seal, I guess I should replace the bearing also and my brother suggested that I should replace the wheel bearings so I'm starting on a clean slate.
Tuned
Joined: Jun 2003
Posts: 402
Likes: 1
From: Burlington, Maine
Drain and inspect the diff fluid also. I just found my noise - just got loud enough to pinpoint today. 99% sure the pinion bearing is toast. It sounds like more of a whine than a roar from inside the truck.
Cargo Master
Joined: Feb 2011
Posts: 3,450
Likes: 13
From: Forest lake minnesota
Yes in order to replace the inner bearing the pinion has to come completely out and in order to do that the carrier needs to come out. Make absolutely sure you put the carrier caps back in the exact same way they came out. With replacing the pinion bearings the rearend will need to be completely reset up which is not for the average shade tree mechanic..
Tuned
Joined: Jun 2003
Posts: 402
Likes: 1
From: Burlington, Maine
Yes in order to replace the inner bearing the pinion has to come completely out and in order to do that the carrier needs to come out. Make absolutely sure you put the carrier caps back in the exact same way they came out. With replacing the pinion bearings the rearend will need to be completely reset up which is not for the average shade tree mechanic..
Cargo Master
Joined: Feb 2011
Posts: 3,450
Likes: 13
From: Forest lake minnesota
And that's exactly my dilemma right now. My pinion was making noise (that I couldn't track down - see the Excursion Psychosis thread), but, today it started getting louder. I know the pinion is bad, but, what else am I going to have to replace? is the question that scares me. I've never set up a carrier before. Right now I'm looking at trying to find a moderately low mileage rear end I can put in it. Have to have it road ready by the 16th to go on vacation...
Personally I would opt to fix what you have as you have no idea what your getting with a used axle, I just put a new carrier in mine as well as carrier bearings but I didn't touch the pinion so I didn't have to reset anything luckily..
Cargo Master
Joined: Jun 2010
Posts: 2,113
Likes: 4
From: Iowa
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Tuned
Joined: Jun 2003
Posts: 402
Likes: 1
From: Burlington, Maine
Well, in the end that's what I'm doing. Got a True Trac to replace the factory LSD. It all gets installed tomorrow...
Thread Starter
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Posting Guru
Joined: Nov 2009
Posts: 1,522
Likes: 1
From: Liberty, NC
After rotating my tires and jacking the front up..it has been determined that my passenger side hub was shot. The roaring was so low and undetectable that I thought it was coming from the rear. Just ordered Timken hubs and pinion seal, and hope I don't find another strange sound.
Cargo Master
Joined: Feb 2011
Posts: 3,450
Likes: 13
From: Forest lake minnesota
After rotating my tires and jacking the front up..it has been determined that my passenger side hub was shot. The roaring was so low and undetectable that I thought it was coming from the rear. Just ordered Timken hubs and pinion seal, and hope I don't find another strange sound.
That's easier to fix, Thanks for updating the thread.
Elder User
Joined: Nov 2014
Posts: 582
Likes: 7
From: Charles Town, WV
Nice easy fix.
For the record, if you let a leaking rear diff go long enough you end up with this. Mine was a rusted out diff cover that would fling oil out only at highway speed so it never left a puddle to alert me to a problem until it went SCREEEEEEECH BANG no more go.
For the record, if you let a leaking rear diff go long enough you end up with this. Mine was a rusted out diff cover that would fling oil out only at highway speed so it never left a puddle to alert me to a problem until it went SCREEEEEEECH BANG no more go.
Thread Starter
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Posting Guru
Joined: Nov 2009
Posts: 1,522
Likes: 1
From: Liberty, NC
Nice easy fix.
For the record, if you let a leaking rear diff go long enough you end up with this. Mine was a rusted out diff cover that would fling oil out only at highway speed so it never left a puddle to alert me to a problem until it went SCREEEEEEECH BANG no more go.
For the record, if you let a leaking rear diff go long enough you end up with this. Mine was a rusted out diff cover that would fling oil out only at highway speed so it never left a puddle to alert me to a problem until it went SCREEEEEEECH BANG no more go.
Thread Starter
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Posting Guru
Joined: Nov 2009
Posts: 1,522
Likes: 1
From: Liberty, NC
Soooooo...the battle continues!!! Replaced the front hubs and pinion seal, and I still have the roaring. My brother said he's going to let alot of the air out of the tires to see if that changes the pitch of the Roar. After my brother ripped out the front suspension to paint/powder coat parts, I was told to have it aligned asap!!! But with me driving it a little more than I was suppose to, maybe it really ate bad into one of the tires and that's my Roar. If not, I'm going to have all the rims re-balanced. Any thought or suggestions again?
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Posting Guru
Joined: Nov 2009
Posts: 1,522
Likes: 1
From: Liberty, NC
I can tell that my U joint has wear, as I can see bare metal where it's worn. I also re balanced all my tires hunting for my vibrations. The picture sucks, but does it look like the United joint needs replacing?