700r4 Behind /6?

redfastback said

actually, chuck is right. the 200-4r is a stronger tranny. they did an article in drive! awhile back that had 3-4 tranny shops talk about overdrives and all say that the 200-4r can take more hp than the 700-r4. yes the 700 did become the 4l60e, but even then the vette got the 4l80e. the gnx cars got the 200-4r, and that car outperformed the vette. beside all that, is a slant 6 gonna kill a 700-r4???? NO.

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I've done both of them, though it's been a very long time ago. I remember the 700 as being kind of light duty but the 200 didn't impress me as being any better. It had a screwed up valvebody arrangement that was very sensitive. Maybe it's stronger but I can't see why. But what it was used behind, or in, isn't necessarily an indication of it's torque rating. And that is what is the determining factor for it's application. Gearing, both trans and final drive, vehicle weight, platform packaging and intended application all factor in along with engine output to determine what trans is used.

As for which is the better trans? Does GM still make the 200?

On a side note I just overhauled a 4l60e from a 350 v8 pickup with over 340,000 miles on it. It was none the worse for wear and only required friction plates, seals and gaskets.

I'm not sure but isn't the 4l80e just a beefier version of the 4l60e? I'm not really up on GM's.