I'm sure it would be rtv they want added to it.

ASTE25 · by **ASTE25** » Jun 13 2012, 4:17am

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sparkplug · by **sparkplug** [OP] » Jun 13 2012, 4:22am

2003Z71 wrote:I changed this same gasket on my 2003 a few weeks ago thinking it would fix my oil leak. Well it slowed it down but it still drips. I'm sure it's now a rear main seal. Lots of thread on this site about that subject!
Unfortunately the gasket is only available from the dealership. GM# 12611384. You'll loose about a 1/4 of a quart, it's not bad, just have a small container to catch the drips.

Have you try high miles oil, it have sealed condition and help stop leak or slow down the leak. I currently using quaker state defy high miles 5w30, and alot peoples on oil forum running mobil 1 high miles and it stop/slow their leak.

ASTE25 · by **ASTE25** » Jun 13 2012, 4:24am

I do not believe in that kind of a "fix". I believe in making the actual repair. That stuff may stop the leak for a little while, but eventually you will have to replace the gasket/seal. I like to make the repair correctly the first time.

sparkplug · by **sparkplug** [OP] » Jun 13 2012, 4:38am

ASTE25 wrote:I do not believe in that kind of a "fix". I believe in making the actual repair. That stuff may stop the leak for a little while, but eventually you will have to replace the gasket/seal. I like to make the repair correctly the first time.

You right. But I dont want to think about how much rear main seal gonna cost to replace. My mechanic ability is very limited

ASTE25 · by **ASTE25** » Jun 13 2012, 4:54am

Yes, they are high. If it was a 2WD it would be no problem. I put one in a 2WD Suburban (same as a 2WD Silverado/Sierra) in about 3 hours. That was taking my time. I replaced one in a 4WD Tahoe (Same as a 4WD Silverado/Sierra) and it took me about twice as long.

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I'm sure it would be rtv they want added to it.

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