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Old 05-27-2003, 03:52 AM
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Question TH-350 leaking

Hi Guys,
I've got a TH-350 behind my SBC, has about 40K miles on it and has started leaking (needs topping up every few hundred miles), I haven't had a chance to get under it yet but will do this weekend, just wondering if they were famous for leaking from anywhere in particular to help me track it down,

thanks in advance

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Old 05-27-2003, 09:07 AM
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Hi i think when you get under you will see where it leaks. Oil pan oil lines rear and front oil seals.Could be at the rear oil seal where the drive shaft is sometimes if the drive shaft is not properly balanced it vibrates and can ruin the seal. Good luck.
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Old 05-27-2003, 09:31 AM
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had one that leaked out the speedometer input. couldnt figure out how to fix it so sold the car. real smart.
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Old 05-27-2003, 02:30 PM
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All leaks are a easy fix except the front seal. Lines/fittings are simple. So is the real seal (remove the driveshaft) and the pan gasket is easy also.

Most leak troubles (that I have) comes from the selector shaft. These are also simple with a simple K&D tool.

Invest in one...... works on about all GM automatic transmissions .....PG, T350 &400 ECT

[ May 27, 2003: Message edited by: Deuce Roadster ]</p>
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