Differential seal 65 Chevelle - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

 
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post #1 of 7 (permalink) Old Jan 21st, 20, 5:18 PM Thread Starter
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Lou
 
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Differential seal 65 Chevelle

Hi,

Will the yoke seal leak if you install it with the seal flange against the case ?

Lou
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post #2 of 7 (permalink) Old Jan 21st, 20, 6:12 PM
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Eric
 
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Re: Differential seal 65 Chevelle

If you mean backwards, yes.

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post #3 of 7 (permalink) Old Jan 21st, 20, 6:13 PM
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Freddie
 
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Re: Differential seal 65 Chevelle

Only if it's rubbing the outer bearing. If there is clearance between the seal and bearing it should be fine. If you are asking if it will leak if you installed it backwards then the answer is yes, definitely.


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post #4 of 7 (permalink) Old Jan 21st, 20, 7:06 PM Thread Starter
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Lou
 
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Re: Differential seal 65 Chevelle

HI,

You can't install it backwards. The rubber seal is integral with the metal base. The shop manual say's to install it with some gap between the seal metal flange and the case. This is apparently because the rubber makes contact with the bearing and wears out fast and leaks if it goes all the way down. Just wondering if the seals made today have resolved that issue and are made so they do not touch the bearing if you installed the seal without the gap. It's actually a friend of mine who did it that way and I'm researching it for him.

Thanks
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post #5 of 7 (permalink) Old Jan 21st, 20, 8:47 PM
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Freddie
 
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Re: Differential seal 65 Chevelle

The original car 12 bolt seal and others can be installed backwards. The seal that is sold for the car 12 bolt today is actually a truck 12 bolt seal. It can't be installed backwards, but I didn't know if you had a seal that was made like the original or if you had the truck seal. Some of the truck seals can be driven in all the way, but a few can not.


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post #6 of 7 (permalink) Old Jan 22nd, 20, 10:50 AM Thread Starter
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Lou
 
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Re: Differential seal 65 Chevelle

Quote:
Originally Posted by big gear head View Post
The original car 12 bolt seal and others can be installed backwards. The seal that is sold for the car 12 bolt today is actually a truck 12 bolt seal. It can't be installed backwards, but I didn't know if you had a seal that was made like the original or if you had the truck seal. Some of the truck seals can be driven in all the way, but a few can not.
Okay, this must be the truck seal type. Seal goes in then the yoke is pushed onto the shaft. The rubber lip is pointing inwards. I'm wondering if with a sharp edge tool it can be worked out very slowly. Pack the gap with seam sealer. It's a real pain removing that nut and putting it back on. Need a new crush tube too.

Thanks
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post #7 of 7 (permalink) Old Jan 22nd, 20, 1:42 PM
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Eric
 
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Re: Differential seal 65 Chevelle

If your just changing the seal you don't need a new crush washer, you need to mark the nut and count the turns so you can tighten it back to where it was. I do however recommend a redi-repair sleeve for the yoke, its an inexpensive insurance against future leaking. They provide a smooth area for the new seal to seat on and a few thousandths of extra thickness to ensure a tight seat. Eat your Wheaties that morning your in for a real work out.

Your just jealous because you can't hear the voices!

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1963 Plymouth Fury 440/Torqueflite
2007 Ford Mustang GT (momma's car)
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