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View Poll Results: How to seal a differential cover
Gasket 2 8.33%
RTV 18 75.00%
Both 4 16.67%
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Old September 6th, 2011, 05:58 PM   #1
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Default Differential Cover Drip - Gasket vs. RTV (or both)

My rear differential cover is dripping (D35) on my '93 Wrangler
I'm wondering what I should use to seal it
I've seen posts about how RTV works fine, but a gasket is the right way to do it

I'm just looking for some advice, maybe based on prior experience or knowledge

Thanks



Gasket I'm considering
http://www.quadratec.com/products/52416_103.htm
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Old September 6th, 2011, 06:06 PM   #2
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Always used rtv and I have never had one leak.
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Old September 6th, 2011, 06:19 PM   #3
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I've started using gaskets b/c i don't feel like dealing w/ the mess. (lazy)
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Old September 6th, 2011, 07:12 PM   #4
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Ive been using rtv.. Works great!
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Old September 6th, 2011, 07:19 PM   #5
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Whats a diff cover?
RTV?
I'm so confused.
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Old September 6th, 2011, 07:20 PM   #6
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I've always used RTV also.
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Old September 6th, 2011, 07:23 PM   #7
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Last edited by @_'-'; September 30th, 2011 at 10:20 AM.
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Old September 6th, 2011, 07:23 PM   #8
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RTV only. Works great from the factory.
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Old September 6th, 2011, 07:23 PM   #9
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one or the other. never both!
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Old September 6th, 2011, 07:29 PM   #10
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Quote:
Originally Posted by boggin-machine View Post
one or the other. never both!
This ^^^

The only time I have used both together I when the newer gasket has a small tear on it. A light coat over the tear will seal it
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Old September 6th, 2011, 07:40 PM   #11
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lube locker gaskets are reuseable and you dont use rtv with them.

that being said i either use rtv or lube lockers. i never use the crappy paper gasket that come with diff covers or rebuild kits.
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Old September 6th, 2011, 07:43 PM   #12
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I used a gasket once and it always had a little leak, ever since it's always just been RTV for me. I spread a layer on the cover, let it sit till tacky and bolt it up, never leaked.

I have wanted to track down a reusable rubber gasket, i've heard good things but been lazy and never looked.
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Old September 6th, 2011, 07:47 PM   #13
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I believe most of the leeks are not related to eather RTV or the gasket. It is the lack of cleaning the surface of all of the old gasket material, removal of the grease and over tightening of the bolts, especially with a gasket.

RTV is best for me.
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Old September 6th, 2011, 10:06 PM   #14
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weld it shut, problem solved.
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Old September 6th, 2011, 10:15 PM   #15
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Paper gasket with a thin coating of wheel bearing grease on both sides so it soaks into the paper. Never leaks and is reusable as long as you are gentle when you replace fluid later.
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Old September 7th, 2011, 12:53 PM   #16
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Quote:
Originally Posted by schanxj View Post
Paper gasket with a thin coating of wheel bearing grease on both sides so it soaks into the paper. Never leaks and is reusable as long as you are gentle when you replace fluid later.
this
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Old September 7th, 2011, 01:58 PM   #17
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I've done both and never had problems. The dana 35 always leaks at the stupid rubber fill plug though.
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Old September 9th, 2011, 11:58 AM   #18
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Thanks for all the replies
I think I'm going to try to RTV it ($$)

It sounds like the biggest thing is to make sure the surface is clean.
Any recommendations on technique?

One of my friends told me to use a razor. Its super slow, but super effective
I've also read brake cleaner
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Old September 9th, 2011, 01:32 PM   #19
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I use brake cleaner with a scotch pad. Just don't use one of those sanding wheel pads on the air grinder. It will sand/polish the surface and the rtv will not stick LOL. Learned by experience lol.
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Old September 9th, 2011, 01:51 PM   #20
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Just jb weld it. All good.
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