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year?? TH350

Old 04-26-2007, 09:17 PM
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Default year?? TH350

How can I tell how old this transmission is?
These are the numbers i found on it
15 426-1 GM19 8641410 L1
T



Old 04-26-2007, 10:52 PM
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Its a lockup th350 (TH350C) late 70s 79 to around 84 and its a multi pattern , You can find the exact year from the VIN that is sometimes stapped on the bell around where the cover bolts up
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Old 04-27-2007, 05:28 AM
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That circle on the case right above the TCC connection, the one towards the front is a casting clock, it has the casting date on it. Looks like the pump was cast in '81.
It really doesn't matter, it's a th350C.
Old 04-27-2007, 08:34 AM
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Thanx guys!
Old 04-27-2007, 11:31 AM
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You can throw that one away. Its a lock up and is useless.
Old 04-27-2007, 11:39 AM
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Originally Posted by WE TODD DID
You can throw that one away. Its a lock up and is useless.
So I should junk it and find another TH350?
Old 04-27-2007, 03:41 PM
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Bump Bump!
Old 04-27-2007, 04:02 PM
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Same internals as a regular th350 except for the pump, input shaft and a few things around the VB.
The only disadvantage is converter selection.
You can convert it to a non lock up th350 with the pump, input, and a superior products kit. This will allow you to use a common th350/400 converter.
These transmissions also have torrington bearings in place of plastic or metal thrust washers (not that it matters that much).
If you need a pump and input out of a regular th350 why not use the whole regular th350???? Because you can find cores with broken cases for dirt cheap.
Old 04-27-2007, 05:43 PM
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Originally Posted by 8a8mfh
Same internals as a regular th350 except for the pump, input shaft and a few things around the VB.
The only disadvantage is converter selection.
You can convert it to a non lock up th350 with the pump, input, and a superior products kit. This will allow you to use a common th350/400 converter.
These transmissions also have torrington bearings in place of plastic or metal thrust washers (not that it matters that much).
If you need a pump and input out of a regular th350 why not use the whole regular th350???? Because you can find cores with broken cases for dirt cheap.
Exactly! Just find another. They are a dime a dozen!


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