I have gear oil leaking onto the inner rims

**Eganslp** · 02-16-2011, 06:59 PM

Hey guys so far this "newer, stronger rear" has been the biggest PITA ever!!!!
K, problem; I coming home from work and I smell gear oil. So I walk to the back of the car and then I noticed that it smelt hot. So I climbed under the car and first thing I see is that it's on brakes. WTF!? How?
Then I noticed it dripping on to the rims on both sides. I had called moser they said, "I most likely over filled it." I told them "I put 4quarts in there and not even all of it." There was still like 6oz. left. So i didnt over fill it.
Do you guys know what could be wrong with this? Has anybody ever had this problem? Did I install this wrong? Cuz this def. shouldn't be happening so soon. But idk maybe I messed something up!? (Sliding axels in, we all know how hard that is!!! j/k) So can someone help me out? It would be greatly appreciated!

& Thx in advance

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**Y2KPewterSS** · 02-16-2011, 07:15 PM

Either the axle seals are bad or you overfilled it. I don't know what Moser specifies as far as amount, but on the 10 bolts, you use 2 quarts, and maybe part of a 3rd quart. 4 quarts sounds to me like you over filled it.

**Eganslp** · 02-16-2011, 07:30 PM

Well it's the moser 9" with the 3" housing, 35spline axels, detriot locker w/ aluminum center section & 4.11's, 4channel abs and tcs. The instructions told me 4quarts needs to be put in it. Also this rear is still fairly new. I had gotten it in Nov. I did't think the seals could go so soon. But, if that be the case do you know if they'd warranty something like that? Or bc I had installed it, they'll put as improper installation.

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**Eganslp** · 02-16-2011, 07:35 PM

Oh also the guy from moser never gave me a straight answer. If say it was over filled, would that ruin the seals that are currently in there? Or am I ok for now and just changing out the oil?

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**zmg00camaross** · 02-16-2011, 07:50 PM

Is in on the driver side?

**Eganslp** · 02-16-2011, 07:56 PM

on the inner part on both rims. My friend had asked that same question earlier. Can I ask as to why? Why would it matter if it was on just one wheel? I forgot to ask him. -thx

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**zmg00camaross** · 02-16-2011, 08:06 PM

When I had a 9 inch with a detroit true track with moser axles. the driver side axles was a tad to long and made the seal not seal and destroy the axle bearing which I had to cut down, SUCKS. I believe mine only took a little bit over 3 quarts so I would check for it being over full first. If you remove the plug out of the 3rd member it should barely run out of the fill hole. I also the second time around put a little permetex silicone the type that can handle grease on the seal and never had a issue

**Eganslp** · 02-16-2011, 08:40 PM

so did moser take them back and cut it down for you.

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**zmg00camaross** · 02-16-2011, 08:58 PM

Originally Posted by Eganslp

so did moser take them back and cut it down for you.

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No I cut them myself. Not saying thats your problem. Just my experence with moser axles and a tru track you have a locker i believe. So mite be as simply as being overfull.

**need4fun2469** · 02-17-2011, 02:11 PM

everytime I fill my 9" it takes just short of 3 qts. I am having the same problem on mine now but it looks like my oil is coming from the pinion seal.

**Eganslp** · 02-20-2011, 06:06 PM

hey, sry guys for getting back so late been busy. I was wrong it is just on the passenger side. So a buddy of mine thinks that it might be just a seal. What do you guys think?

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**zmg00camaross** · 02-20-2011, 08:58 PM

Possibly, they can do that, Just have to remove and inspect and install a new bearing and seal which those little bastards arent cheap.

**ls1camino** · 02-22-2011, 08:18 AM

My Moser 9" takes 3qts...I'm fairly sure 4qts is going to be an overfill and start leaking out of the axles.

**need4fun2469** · 03-07-2011, 08:58 PM

I had to cut my bearings off with a grinder because they are sealed.

**Smittro** · 03-07-2011, 10:53 PM

This is'nt the first time I've heard about a Moser leaking..

Seems to be a reaccurring theme.. Are they junk?

**importhater81** · 03-08-2011, 01:06 AM

Originally Posted by Smittro

This is'nt the first time I've heard about a Moser leaking..

Seems to be a reaccurring theme.. Are they junk?

Not the first time I've heard about it either.

For a rear axle that costs close to $3k...you would think axle seals leaking wouldn't be an issue.

**35th-ANV-SS** · 03-08-2011, 04:40 AM

Had this SAME EXACT PROBLEM. Let me find my thread for you.

**35th-ANV-SS** · 03-08-2011, 04:42 AM

Here you go: http://www.ls1.com/forums/showthread.php?t=123054

It is your seal, guarantee it!!

**Smittro** · 03-08-2011, 05:51 AM

Originally Posted by 35th-ANV-SS

Had this SAME EXACT PROBLEM. Let me find my thread for you.

Originally Posted by 35th-ANV-SS

Here you go: http://www.ls1.com/forums/showthread.php?t=123054

It is your seal, guarantee it!!

You were the first to come to mind..

Because you were running a stock engine when this happened too..

Seperately.

Obviously a few complaints numbering in single digits does'nt mean the axles are junk..

But it always seems to be a Moser seal issue time and again..

Sounds like they either need a new machinest.

Either that or someone needs some effin QC to be happening in tooling...

Good luck with your troubles guys..

**35th-ANV-SS** · 03-08-2011, 05:55 AM

You have to finesse the axle seal when you install it. If you crush it at all, you might as well pull it out and buy a new one.

I made a special tool to install mine. It basically was a washer with a bolt welded to it to tap it in.

The washer is about .002" undersized from the axle ID.

Once you get it in, use RTV all around the OD of the seal where it seats up against the housing ID.

Also make sure your axle shaft is lubed up before you try to slide the seal onto it. The spring on the seal goes towards the pumpkin.

Do not install it backwards!