Ok to use a gasket for a rear end w/o RTV? - TCCoA Forums
 
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post #1 of 9 (permalink) Old 01-28-2010, 01:01 PM Thread Starter
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Ok to use a gasket for a rear end w/o RTV?

Well its for an Explorer, 8.8 rear, my diff cover totally rusted out and I got a new one with a free gasket. I usually use Permatex Black RTV, but I'm wondering if I can get away with just the gasket and avoid the mess. It was replaced 2 years ago, my bad for not getting new cover then. I just want to get this over with.

I wonder though if the bolts loosen up a bit if it will seep, the RTV glues everything together.

Last edited by tbirdguy; 04-07-2012 at 11:58 AM.
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post #2 of 9 (permalink) Old 01-28-2010, 01:11 PM
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RVT really is not that expencive why not put it on there anyways just so you have that piece of mind that it will not leak

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post #3 of 9 (permalink) Old 01-28-2010, 01:21 PM Thread Starter
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Thanks..

Its not the price but its just a mess, I was just seeing if I can get off easy.

I'm going to use the Black RTV though, I'm thinking if it does leak the job would have to be redone. I don't want to do this again for a long time.

The gaskets are not a good idea, it looks like a flimsy one too on closer inspection. I wonder why they sell those gaskets, even the factory uses RTV. Probably gaskets leak and cause warranty comebacks.

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post #4 of 9 (permalink) Old 01-28-2010, 01:34 PM
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Yeah the cost and the mess out weigh the price of having to do the job twice. I HATE doing that !

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post #5 of 9 (permalink) Old 01-28-2010, 02:39 PM
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I rec Ultra Grey RTV. I have and never will use a gasket on rear ends.

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post #6 of 9 (permalink) Old 01-28-2010, 03:39 PM Thread Starter
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Quote:
Originally Posted by Tony View Post
I rec Ultra Grey RTV. I have and never will use a gasket on rear ends.
Looks like there is a brand new product just for this purpose:

http://www.permatex.com/products/Aut...tv_sealant.htm

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post #7 of 9 (permalink) Old 01-29-2010, 04:31 AM
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post #8 of 9 (permalink) Old 01-29-2010, 12:26 PM
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It's not messy if you use a tip that is usually included with the tubes of RTV these days. The messiest part about changing my differential lube was the lube itself, not the RTV. Just make sure you are thorough with the RTV application. I put 3 constant beads of RTV around my differential cover just for insurance. Not a leak thus far *knock on wood*.

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post #9 of 9 (permalink) Old 03-12-2010, 08:22 PM
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I rebuilt an 8.8 with my buddy at work a couple of weekends ago and we used a little bit of RTV all around the edge and around the holes and then added the paper gasket. It's just a little extra security to keep it in place for install and help it from not leaking down the road.
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