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Old 12-24-2010, 02:10 PM
oldguy829's Avatar
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th350 trans leak.

my 41 pontiac has a 350/350 in it. Not sure what year. The car gets driven about 1,000 miles a year. Hasn't been out in 6 months. Drove it about 10 miles, no prob, as i walked away I saw a red trail. It is leaking fluid badly. pulled the dust cover and it appears to be coming from the seal between the torque converter and front of the trans. Low on fluid, but noticed nothing wrong with the trans while driving, so I don't think I've ruined anything. Trans has always worked perfectly and didn't leak. I'm thinking the seal dried out (many times) and maybe blew a chunk. Problem is, I don't have a lift, or much experience with auto trans. Any chance i could disconnect trans, slide it back and replace the seal? Or does it need to come completely out? don't think I can get it high enough to pull it out completely. What are the odds it is more than just the converter seal and has to come out.
Thanks for any insight.

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Old 12-24-2010, 04:03 PM
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If it is the front seal, then the trans does need to come down due to the torque converter needs to come out first. You are going to need to lift the car up high enough to drop the trans and remove the torque converter not necessarily take out the trans, just lower enough for the converter to come out. I've done this in my drive way and replaced the entire trans and converter with a $70 jack from pep boys. Be safe though use chocks and jack stands where you can. The front seal will need to be pressed on so be careful when installing. I use a piece of exhaust pipe and hammer it in evenly with gentle taps. Make sure its your front seal first! Check where the dipstick goes into the trans, pan, etc and be sure to identify the leak first.
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