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Tranny leak at the pan

Posted By: Dons Dart

Tranny leak at the pan - 05/09/16 02:29 PM

Ok, a buddy put a shift kit in my 904and he knows what hes doing great around cars and used the rubber gasket for the pan.The pan is flat,but its leaking,i can see right were its leaking 1 spot.I like the cork gasket,is there a sealer that is transmission fluid friendly to use with the cork.Thanks.
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/09/16 02:35 PM

You might want to try the newer mopar gasket 4295875AC. They seem to work pretty well. I never liked cork to be honest.
Posted By: frank

Re: Tranny leak at the pan - 05/10/16 04:29 AM

I used the newer factory gasket for my 727 and it works
Posted By: Dons Dart

Re: Tranny leak at the pan - 05/10/16 02:18 PM

Originally Posted By frank
I used the newer factory gasket for my 727 and it works
Is that the 1 mopar4ever used.
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/10/16 02:20 PM

Same type part but 727 uses a different part number.
Posted By: Dons Dart

Re: Tranny leak at the pan - 05/10/16 06:45 PM

Originally Posted By mopars4ever
Same type part but 727 uses a different part number.
Is that the same part # for my 904
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/10/16 09:32 PM

4295875AC 904
Posted By: Dons Dart

Re: Tranny leak at the pan - 05/11/16 02:07 PM

Thank you sir.
Posted By: shorthorse

Re: Tranny leak at the pan - 05/12/16 01:41 AM

You mentioned the pan was straight. The flange on steel pans can distort from uneven tightening. Over-tightening the bolts will result in the flange pushing in around the bolt, causing an uneven surface. It extremely important that the flange be flat. The gasket recommended by mopar4ever is as good as they get. I gave up on the steel pans years ago and went with the cast aluminum pans but they're expensive. Whether it's worth it or not depends on your frustration level.
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/12/16 01:46 AM

One thing you can check is to see if sealer or any other crap is in the bolts holes. Sometimes the bolts feel tight but they are really bottoming out on the sealer. Ask me how I know. blush
Posted By: AARCONV

Re: Tranny leak at the pan - 05/12/16 02:45 AM

What is the 727 gasket part number?
Posted By: 1971 Gran Coupe

Re: Tranny leak at the pan - 05/12/16 03:59 AM

Same thing happened to a friend and he was at a total loss as what to do. He shoewed me the pan, and it was very evident it had been over tightened and the distortion from the bolts and washers. I told him it could be an easy fix and used a dolly and hammer and worked the pan flange flat and he reinstalled and it does not leak a drop. Maybe yours will be this easy. beer
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/12/16 04:16 AM

2464324AC 727
Posted By: Dons Dart

Re: Tranny leak at the pan - 05/12/16 02:01 PM

Well I got the gasket,will change it and post what the out come is.Thanks for all the help.
Posted By: mopars4ever

Re: Tranny leak at the pan - 05/12/16 03:55 PM

Make sure all the bolt holes are cleaned out. I used a pick.
Posted By: Dons Dart

Re: Tranny leak at the pan - 05/18/16 04:42 PM

Originally Posted By mopars4ever
Make sure all the bolt holes are cleaned out. I used a pick.
Sorry for taking long to post back,that gasket work purrfect thanks.
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