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Old 04-17-2011, 05:33 PM   #1
1425956
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Trans leak from dust shield. Brand new front seal.

Well, the title says it all. This truck sat for 9 years and I have had to replace a bunch of seals and gaskets. I pulled the trans about 3 weeks ago to change the front seal on the trans due to a leak.

Got everything bolted back up and I still have a trans leak. If anything, the leak may be a little worse. It is dripping from the small hole in the bottom of the dust shield. The oil pan appears to be very dry. I can't get the dust shield off without removing or lowering the exhaust.

It is driving me crazy and I am having to park in the road so I don't get tranny fluid on the driveway. I am afraid someone is gonna come buy at night and slam into my truck. Any ideas?
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1984 GMC Sierra Classic-1/2 ton-SWB (R.I.P.)
1986 GMC Suburban 3/4 ton 4x4
2014 GMC Sierra LTZ Z-71 Crew SWB
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Old 04-17-2011, 06:01 PM   #2
one low c10
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Re: Trans leak from dust shield. Brand new front seal.

front pump or the seal still. did you check the converter to see if it was scored or grooved? if it is, they make a repair sleeve to correct the problem. just my .02 cents
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Old 04-17-2011, 06:09 PM   #3
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Re: Trans leak from dust shield. Brand new front seal.

worked in a TC shop and those groves and such were just sanded down smooth with emery cloth while it was on the lathe to get cut open.

could catch a good fingernail on some and long as its smooth, it will seal.
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Old 04-17-2011, 06:12 PM   #4
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Re: Trans leak from dust shield. Brand new front seal.

Quote:
Originally Posted by one low c10 View Post
front pump or the seal still. did you check the converter to see if it was scored or grooved? if it is, they make a repair sleeve to correct the problem. just my .02 cents
When you say front pump or the seal...You are referring to 2 different seals? The one I changed is the one you can see that goes around the input shaft. Is there another one? And no, I did not really look at the converter too much..Guess I should have
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Jeremy
I have done so much, for so long, with so little, I can do anything with nothing!

1984 GMC Sierra Classic-1/2 ton-SWB (R.I.P.)
1986 GMC Suburban 3/4 ton 4x4
2014 GMC Sierra LTZ Z-71 Crew SWB

Last edited by 1425956; 04-17-2011 at 06:16 PM.
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Old 04-17-2011, 06:22 PM   #5
one low c10
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Re: Trans leak from dust shield. Brand new front seal.

there is a gasket behind the front pump that could be bad too, i would think it would be the seal though. check the converter for any scratches or grooves.
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