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#1 |
Registered User
Join Date: Dec 2010
Location: Peterborough, Ontario
Posts: 54
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Trans Leak Question
My 700r4 transmission is leaking pretty badly from somewhere near the bellhousing/stall converter. I thought I blew a gasket or seal in my trans but I'm looking for what exactly it could be so I can price out fixing it. Help
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1987 Chev V10 Custom Deluxe 355tpi, 700R4, 3.42s in 10 bolt axles (for now!), new Auburn Posi in rear, 4" lift on 33s. ![]() |
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#2 |
Registered User
Join Date: Dec 2011
Location: Camp Lejeune, NC
Posts: 169
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Re: Trans Leak Question
sounds like the front seal
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#3 |
Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: Trans Leak Question
^ yep, def seals. Pita have the same issue. Been avoiding it.
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#4 |
Registered User
Join Date: Dec 2010
Location: Peterborough, Ontario
Posts: 54
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Re: Trans Leak Question
Is it something I can do with a little research or should I be calling the trans shop?
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1987 Chev V10 Custom Deluxe 355tpi, 700R4, 3.42s in 10 bolt axles (for now!), new Auburn Posi in rear, 4" lift on 33s. ![]() |
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#5 | |
Registered User
Join Date: Jan 2012
Location: Lindsay, Ontario Canada
Posts: 649
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Re: Trans Leak Question
Quote:
Once all that is done it is not a huge issue to change the seal... Basically pulling the seal and installing the new one. One question, how bad is it leaking? If it is just a small leak try some Lucas transmission sealer. I have seen it work on small leaks before and it is a lot easier to pour in then change the seal... Hope that helps.
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1981 C50 Conversion http://67-72chevytrucks.com/vboard/s...d.php?t=503247 1962 Grumman Olson http://67-72chevytrucks.com/vboard/s...d.php?t=613242 |
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#6 |
Dino burner
Join Date: Nov 2002
Location: Calgary, Alberta, Canada
Posts: 602
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Re: Trans Leak Question
It could be leaking from a number of places:
- torque convertor to pump seal - pump to case gasket - pump to case O-ring - any of the bolts that hold the pump to the case; each bolt has a gasket |
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#7 |
Registered User
Join Date: Apr 2011
Location: corpus christi, tx - america's fattest city
Posts: 253
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If you have to disconnect everything just to access the front seal it's like open heart surgery, instead of chasing a bad seal pull the whole unit and take it to a shop. Do it once and do it right, get a warranty and don't worry about other problems with it down the road.
Transmissions are complex precision units, think of losing fluid like you were losing blood. Yes it's expensive to have it overhauled/rebuilt, but ask yourself if you want to go through this again later? It's up to you. My experience taught me if you have to pull it get it overhauled so you won't have to do it twice. |
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