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| Username | Post: TH350/TH250 Trans identification | |
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nova2666 Member Posts 14 |
09-25-04 05:16 PM - Post#518343
Just wondering if someone knows how to identify if a trans is a 250 without droping it. Looks like I got screwed when I bought this truck. The tranny shop told me it was a 250 but I forgot to ask them how to identify it.
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Anonymous |
09-26-04 12:53 AM - Post#518344
you can tell by looking at the pan. 
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nova2666 Member Posts 14 |
09-27-04 05:37 PM - Post#518345
The problem is that the pans on the 250 and 350 are the same. The 200 is a diff. pan. Maybe the numbers or something else is different. Thanks, Jennifer
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Anonymous |
09-27-04 06:02 PM - Post#518346
Have a look above the cooler line fittings. If there is a threaded screw sticking out of the case with a jam nut on it, it's the band adjustment on a THM250. If there's nothing up there, it's the THM350, or THM350c with a lockup converter. (Oh, and there was a 200 Metric that shared a similar pan to the 250/350's, the 200 Metric had "Metric" stamped right into the pan. The one in the pic above is the 4 spd overdrive tranny - THM2004R.) |
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nova2666 Member Posts 14 |
10-03-04 05:39 PM - Post#518347
I don't see any screw sticking out above the tranny lines. Now I am confused. Maybe I will call the tranny shop and ask them why they thought it was a 250. Jennifer
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mr wabbit Super Senior Member Posts 3535 
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09-16-05 10:46 AM - Post#518348
a 250 is identical to a 350 in EVERY single way except for that the 250 has pan with huge X stamped into it 250 has KICKdown cable and alpso has vac mod valve, all same as th350, and even same pan bolts- 13 of them i have one of these 250C trannies in my 94 impala, behind the original 229 chevy engine, its a 90 degree v-6 3.8L rear wheel drive, same as in the camaros and such 79-84 its a sbc v8 chopped off just like a 200ci v6 and a 4.3L v6 gm made some oddball RWD engines in the late 70s and early 80s,. gas mileage years,
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