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Old 04-23-2003, 04:43 PM
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Post TH-350C

Hi everyone. I'm new here, and my name is Jason. I stumbled onto your site through this topic,

(http://www.hotrodders.com/cgibin/ubb/16/001769)

while searching for information on the TH-350C, the tranny that I think is in my 1985 Monte Carlo. I've read through lots of stuff on your boards and really like it here, so i'm gonna stick around.
Now my question is is there any differences between the regular TH-350 and the TH-350C, other than the lockup converter? I wanna rebuild my TH-350C this summer while i'm home from college, but i was wondering if it's an alright tranny to do? I also plan on putting a mild 350ci engine in the car and i just don't want a weak tranny that can't handle the power i want.(it wouldn't be anymore than 350hp) The car is mainly gonna be a street cruiser and it will prolly only see the track a couple times a year. So what do you guys think? Any info would be greatly appreciated,

Thanks
Jason W.
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Old 04-23-2003, 05:23 PM
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As far a strength, they are the same, in fact the only parts that are different are the pump cover, input shaft, converter and a few valve body parts. The rest interchange with a regular th350. But it's different enough to require it's own rebuild kit and shift kit, in other words they have to be made specifically for a th350c.
The converter has to be cut open and rebuilt during the trans rebuild, the converter clutch wears out and should be replaced. Or get a rebuilt converter. Do not skip this.
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Old 04-23-2003, 06:01 PM
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how much would a rebuilt converter cost?
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Old 04-24-2003, 08:49 AM
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I payed $35 for a stock replacement conv at my local trnny shop
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Old 04-24-2003, 11:56 AM
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wow, that's not a bad price at all. Thanks for everyones input!
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Old 04-24-2003, 05:25 PM
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Cool

Over the years I've seen several of these cars with a T-250C tranny(owned a 1983)


If I was you , I would look near the cooler line hook ups on the passenger side of the tranny case.

If there is a threaded stud with a nut on it that protrudes from the case , it is a T-250C.

I would not use a 250C for performance use since it uses a band for 2nd gear instead of a clutch pack.

Tony
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