540", QuickTime/4L80E by Hughes

Supershafts said

Why wouldn't you use the 48re if you had to go with a od trans, or the 545. ?

Are you using the modified 80e with 6 spds or just the 80e?

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I believe the OP is going the six speed route, I'm sticking with four. I have a full manual, forward pattern valve body with a trans brake. I went with the 80 simply because I'm familiar with it!