I had this installed about a yr ago. I don't drive the car very much at all. Well after having the sit for like 6 months. I notice it was leaking from the drain plug. Like about 1 table spoon or so. Well I tighted that allen bolt and thought all was good. Car been sitting for another 6 months and my wife informed me it was leaking again. Do I need to take that bolt back out and put some RTV on it to make it stop leaking? I never had the rear end leak with the stock cover. Here what the cover looks like Ford Racing Mustang 8.8 Rear End Differential Cover (79-14) M-4033-G2 - Free Shipping!
Ford Racing Differential Cover leaking
needparts
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I had this installed about a yr ago. I don't drive the car very much at all. Well after having the sit for like 6 months. I notice it was leaking from the drain plug. Like about 1 table spoon or so. Well I tighted that allen bolt and thought all was good. Car been sitting for another 6 months and my wife informed me it was leaking again. Do I need to take that bolt back out and put some RTV on it to make it stop leaking? I never had the rear end leak with the stock cover. Here what the cover looks like Ford Racing Mustang 8.8 Rear End Differential Cover (79-14) M-4033-G2 - Free Shipping!
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9,436 Posts
I wouldn't put rtv on it. I would put some pipe dope such as locktite 592 on it
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Sent from AutoGuide.com Free App
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1,322 Posts
I used thread tape on my drain plug. Seems to be holding up fine.
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891 Posts
You are going to list the fluid when you pull the bolt, so have some on hand. If you had a spare plug, you might only lose a small amount swapping them quickly. You should use teflon tape around the threads (go around it twice). A good rule of thumb is to hold the plug in front of yourself with the head facing towards you. Wrap the tape to the right (using your right hand).
Also, thread sealant would work.
Buy Permatex High-Temperature Thread Sealant (.2 oz) 59214 at Advance Auto Parts
RTV is not a good idea for this application.
Also, thread sealant would work.
Buy Permatex High-Temperature Thread Sealant (.2 oz) 59214 at Advance Auto Parts
RTV is not a good idea for this application.
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732 Posts
Mine leaked as well. I switched back to a stock over and lube locker gasket.
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13,580 Posts
I don't know why everyone is telling you not to use RTV?
I replaced my diff cover and only use RTV to seal the cover and drain/fill plug I use the high temp red RTV and have never had an issue with anything leaking on any of the parts I use it on.
I replaced my diff cover and only use RTV to seal the cover and drain/fill plug I use the high temp red RTV and have never had an issue with anything leaking on any of the parts I use it on.
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6,976 Posts
Thread tape fixed my leak. Have someone hold their finger over the hole when you pull the bolt out. You will barely loose any fluid this way.
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13,580 Posts
RTV.
When did you say you were gonna be making a trip to Tx again SSG Pate?
I just found out yesterday, my wife had to get my heater core hose replaces on my car as well.
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13,580 Posts
Itll be a while before I come back to Texas, You mean your wife didn't tell you I came by?:swordfight::When did you say you were gonna be making a trip to Tx again SSG Pate?
Out there in Elpaso it really sucked I don't want to go back to that region for a while. I lived in Houston when I was younger and it wasn't to awfully bad.
Yes.. She said you just came so quickly. No reason to really bring it up she said lol lol :swordfight: So now I need to have the plug removed and put alittle of RTV to stop that leak. Next on the list is the damn S/C oil line. That SOB is leaking too..
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13,580 Posts
HAHA Damn Bro pay back is a bitch LOL
I think the RTV is the way to go, The military equipment I work on leaks from the drain plugs all the time. What I do is back the plug out a pretty good distance then apply a lot of high temp silicone sealant around all the threads I can. After tightening it down then just wipe away the excess. I have not had one leak after 18 years of doing it this way.
I think the RTV is the way to go, The military equipment I work on leaks from the drain plugs all the time. What I do is back the plug out a pretty good distance then apply a lot of high temp silicone sealant around all the threads I can. After tightening it down then just wipe away the excess. I have not had one leak after 18 years of doing it this way.
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808 Posts
^^RTV will work. Thread tape will work too, but can fail.
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4,777 Posts
RTV can work, but it isn't designed to do so. A thread sealant is designed specifically for this scenario.
![Image]()
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13,580 Posts
We have tried that in the past and it seems to break down under normal operating temperatures in automotive applications. I have had very good success with plumbing fixtures using that thread sealant.RTV can work, but it isn't designed to do so. A thread sealant is designed specifically for this scenario.
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