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Old 06-06-2008, 07:46 AM   #1
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I'm finally getting a chance to change the fuel filter that I bought from Oemtech and while under the rig, I noticed that the differential is low.

Just checking, but it gets filled with the synthetic gear oil up to the filler hole???

Going to east Tn tomorrow....short and sweet!

Bob
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Old 06-06-2008, 07:46 AM   #2
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I'm finally getting a chance to change the fuel filter that I bought from Oemtech and while under the rig, I noticed that the differential is low.

Just checking, but it gets filled with the synthetic gear oil up to the filler hole???

Going to east Tn tomorrow....short and sweet!

Bob
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Old 06-06-2008, 08:07 AM   #3
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by CoastieSCPO:
Just checking, but it gets filled with the synthetic gear oil up to the filler hole??? </div></BLOCKQUOTE>Senior Chief, Yes it does and no further.

Make sure that the motorhome is on a level surface when you fill it.
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Old 06-06-2008, 08:23 AM   #4
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Thanks Mike....gonna Get-R-Done!

Sr.

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Old 06-07-2008, 11:21 AM   #5
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Well, I put three quarts in and it still not filled to the top. The rig is level, so I quess it is back to the store and buy some more. I did take the MH for a ride after putting the three quarts in and the rear end sounded just fine.
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Old 06-07-2008, 02:08 PM   #6
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Chief,

I would check that real close as the complete fill on a Dana 80 is only 8 pints or 4 qts. You already added 3 qts.... something does not sound right!!!!
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Old 06-07-2008, 02:32 PM   #7
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by oemtech:
.... something does not sound right!!!! </div></BLOCKQUOTE>Unhuh! What he said .. Chief.

That's a lot of fluid!
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Old 06-07-2008, 02:46 PM   #8
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I am very concerned. What attracted my attention to the differential was there was some oil around the filler plug and when I removed it, the plug was not real tight. Only hand tight I think. So I put in one quart than two more. It will take more, but how much, I don't know. Last year, when the brakes were overhauled at Reeder Chev in Knoxville, maybe the filler plug was left too loose????

I have not noticed any leaking fluids around the tires or wheels and the pad where the rig is parked is free of any oil and the pad has a roof on it.

Looking at pages 86-88 of the WH chassis Guide and comparing photos, it looks like I have a Dana S130 rear on the rig. The table says it takes 16 pts or 6.6 liters of gear oil. If it is a Dana S130 and not a Dana M80, than even though the rear is low, it is not quite as low. Any thoughts from you guys is appreciated.

Bob
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Old 06-07-2008, 03:06 PM   #9
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by CoastieSCPO:
Any thoughts from you guys is appreciated. </div></BLOCKQUOTE>Bob, Here is what my 2006 chassis guide says:

Dana S135/150 (22.5" tires) 14" Ring, 24.5Pt./11.6L, 5.38Gear. This looks like 12.25 quarts to me. I am not certain unless there is a visible track coming from the fill plug that it would be the point where the fluid drained out. As you said there were no drips, no runs no errors.

Continue to fill the differential housing to the bottom of the hole on a level surface. Take 2 aspirins and call me in the morning!
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Old 06-07-2008, 03:17 PM   #10
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Thanks Mike. I've had two drinks and will take two...aspirin...in the morning. I have 19.5 tires and an Allison 1000 5 speed tranny. In any event, we pass right by Reeder Chev, my favorite WH shop on the way to Dandridge, Tn where we are going tomorrow, so if there's a problem, I know just where to go.

Really appreciate your quick response to my questions.

Bob
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Old 06-07-2008, 04:03 PM   #11
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Still, 3 or 4 qts is still a lot o f gear oil. That's 50% on 16 pint fill!
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Old 06-07-2008, 04:17 PM   #12
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Dale;

You are right on the mark and that is what has me so concerned; just why is the thing so low and why it is taking so much to fill it. There is a lesson learned here. Be careful to closely check the differential every time I change the oil. But, on the brighter side...if I didn't buy those fuel filters from OEM Engineering, I might never have looked at the rear end.


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Old 06-07-2008, 04:52 PM   #13
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by CoastieSCPO:
I have 19.5 tires and an Allison 1000 5 speed tranny. </div></BLOCKQUOTE>Bob, Same fluid capacity.
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Old 06-08-2008, 02:05 PM   #14
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Bob, can we assume that your not the original owner??? It would be very hard to loose that much gear lube and not know it. The back of your coach would be covered and the smell of gear lube also makes it hard to leak very much without knowing it. There muct be a story here that we, and perhaps you, do not know.
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