I have an 82 firebird with a th200c. I am pulling the sick old 305, when I unhooked the transmission lines at the radiator there was no atf leaking all over the place! I have always had fluid there. Is there anything I should look for in the trans? I know alot of people consider the th200c garbage, but this is all I got and I need to make it work. Thanks in advance and as always all input is appreciated Jene
If it were my th200c, i would look into hardened rings and a stiffer slide spring for the pump. While you have it apart you could put in larger boost valves and a stiffer spring in the pump to raise the line pressure and give it firmer shifts and longer clutch life. A large auxiliary cooler run in line with the factory radiator cooler will help keep fluid cool. I'm not sure on the 200 how the stator support is or the sun shell as I haven't been into one but those are another two of the weak parts of the 2004r and they are pretty similar units.
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