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Leaky Rear

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Old Aug 31, 2007 | 09:01 PM
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Leaky Rear

No not me, my truck. It seems that it has decided to leak oil out of the oil seal in the rear axle housing. I looked through the shop manual and its part number seems to be 4676. Now is there any easy way to replace this. Can it be done with the rear in place? I was in Texas all week and now there is a nice puddle of 90wt gear oil under the truck. I had big plans for it this weekend and now it will have to sit.
Any info on this woill be appreciated.

I hope everyone has a good 3 day weekend.

Thanks
 
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Old Aug 31, 2007 | 10:27 PM
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See the thread "rear axle advice"
 
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Old Sep 1, 2007 | 08:27 AM
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Sorry, did not see that thread until I posted mine, I was away all week.
My is a 52 the thread is on a 1960, is it the same? Is this a common part that might be available at NAPA or the like? I found it listed last night in the LMC catalog but it would be nice to get it locally.

Thanks again.
 
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Old Sep 1, 2007 | 10:03 AM
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I won't have a chance to confirm til later, but as i recall the Dana axle in your '52 doesn't use a crush sleeve. So the procedure is the same, construction is a little different. You might PM 51Dueller, he sounds like he has actual training in these.
 
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Old Sep 2, 2007 | 06:06 PM
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Does anyone know if the rear seal for the 52 F1 is the same as other years and if its available locally or must be ordered?

Thanks.
 
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Old Sep 2, 2007 | 10:40 PM
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The pinion seal should be the same as all of the other Dana 44 axles. So you could ask for a front pinion seal for a 80-96 F-150 4x4. Be sure to have the old seal with you to compare to be sure.
 
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Old Sep 3, 2007 | 08:41 AM
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that brings up my question.

We rebuilt my 8.8 rear last year, put a new crush collar and new seal, new axle shafts, new posi plates..

since then , it is leaking.. but not where you would expect..

the leak is at the flange nut. take off the driveshaft, and there is a couple tablespoons of oil there at the nut. Probably dripped 1/4 cup since last fall.

the diff side (seal side) of the flange is dry.

We did put in a different pinion gear to go to 3.55

Sam
 
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Old Sep 3, 2007 | 08:42 AM
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sealer

u put any gasket sealer on the pinion nut threads?
 
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Old Sep 3, 2007 | 08:47 AM
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don't remember any... it was a new nut with the locktite band on it.

Sam
 
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Old Sep 3, 2007 | 08:50 AM
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ha

well that loctite band would usually seal it diecent. wonder if theres supposed to be a seal between the back of the nut and the yoke.. like a oring... i bet no on eput any sealer on the yoke splines and it ran through the spines and behind the nut

ray
 
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Old Sep 3, 2007 | 08:55 AM
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Sealer? My son and I did this swap/rebuild..

I've never read anything about sealer on the pinion gear.

Sam
 
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Old Sep 3, 2007 | 08:58 AM
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ya

the pinion splines for the yoke... at least between the yoke and PINION NUT.. think about it fluid can seep past there


ray
 
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Old Sep 3, 2007 | 09:13 AM
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I understand. I read and checked every install manual over a couple of years, watched a number of videos on gear replacement.. never had any mention of any sealer on the pinion splines..

I would never have expected this area to leak tho. (obviously)

Ah well, another fun job.. anyone want to bet the risk of just pulling the flange, and sealing without replacing the crush collar? All new gears.

(I have the bed off at the painters, so access is easy now)\

Sam
 
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Old Sep 3, 2007 | 09:16 AM
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ya

well i think i had a gm that had a oring there.. what u do is clean it good with brake cleaner around the piniion nut. and then seal the hell out of it with silicon..
do this assembled not APART..

Ray
 
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