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TurboHydramatic 350 and 400. The mainstays of the Hydramatic division from the mid '60s through the late '80s. Both are 3-speed automatics and IIRC were named based upon the amount of torque they were able to handle (dunno the exact way they were tested). The TH400 takes more HP to operate but when built properly is darn near indestructible for the street. You can ID them by pan shape: the TH350 has a pan that's rectangular with 1 corner cut off and the TH400 pan's sort of irregular; I've heard some people say it reminds them a little bit of the shape of Texas. Also, the TH350 has a cable-operated kickdown while the TH400's is electric. In the early '80s a lockup version of the TH350 called a TH350C was available. Also, I'm not 100% but I believe there was a weaker version of the TH350 called the TH250 and it had the same pan shape. Can anyone verify this? Your '84 El Camino might have a TH350 but probably not a TH400. However, if you have a 4-speed overdrive automatic you have either a TH200-4R or TH700R4. Brad Paul O'B. wrote: > I know I probably shouldn't ask this, because somebody will call me > an idiot like they did that guy yesterday ,BUT > I hear you guys talking about 350 and 400 transmissions. What's the > difference? How do you know what you have? Which is better? ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
