RE: Inner and Outer Seal failure- Rear end- 64 Plymouth

["Dennis C." <dennis.2914@xxxxxxxxx>]

???

Second try, maybe my other message will also come through?

The inner seals are used to keep the differential lube out of the wheel 
bearing area.  They are installed with the spring lip IN.

The wheel bearings are grease packed like the front wheel bearings 
except much larger and they are pressed onto the axle shaft.

The outer seals are also installed with the lip in to keep the wheel 
bearing grease out of the backing plate area and brakes.

Check the seals when you take them out, they may have been installed 
backwards or the lips may have been damaged when installing the axles.  
It is very easy to damage the seal installing axles.

I don't have the spec for the wheel bearing grease but probably nothing 
special, just a good wheel bearing grease.  You should not have any lube 
from the differential in with the grease.

The fact that you have lube on the brakes on both sides in interesting, 
it would have had to got passed both seals on each side.

Take Care
Dennis


waedison@xxxxxxxxxxx wrote:
> 
> 
> Okay, so when I went through my 64 Sport Fury I got a couple of years 
> ago, I rebuilt the rear brakes, put in new rear axle bearings as well as 
> the inner and outer seals. The seals I put in leaked, on both sides, 
> ruining the brake shoes. I had a difficult time installing the inner 
> seals even though I have what I think is the correct Miller driver # 
> ?-839. After ruining a few inner seals, I thought I got it right. While 
> taking it all apart today, I don't see any apparent problems with the 
> seal faces. 
> 
> So, I've taken the rear axles out to take a look. when I pulled the 
> first axle, I got about 2 cups of rear end oil on the ground. I see that 
> the oil is sitting level with the bottom of the seal as it sits in the 
> axle. In other words, the axle tube is full of oil up to the bottom edge 
> of the seal. Did I simply overfill the rear end when I refilled it? The 
> SM says the rear end takes 4 pints, but what does that look like from 
> the end of the axle tube ? I used what I thought was the correct rule of 
> thumb when filling it, filled it till it touched the tip of my finger 
> with my finger in the fill hole, bent at the first joint. 
> 
> Second, how does the large bearing at the end of the axle get it's 
> lubrication? Is it supposed to be bathed in rear end oil, which doesn't 
> sound right, as it's sandwiched between the inner and outer seal. Am I 
> supposed to pre-grease it and it stays lubed with that, or is some oil 
> supposed to get past the inner seal and lube it. 
> 
> Hope these questions are clear. Thanks/Butch 
> 
> [Non-text portions of this message have been removed]
> 



1996 Dodge Ram 3500 Van Conversion
1964 Plymouth Belvedere 318 Auto
1963 Plymouth Sport Fury 383 4-speed
1949 Dodge Pickup 289/C4 soon to be changed
1998 Honda Valkyrie Standard


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