Can some body tell me how I find which type is my transmission?. I have a 1999 grand prix 3.1 SE . thank;s for any help you can give me

You have a 4t60E

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We can’t help ourselves. We see a line, we want to cross it. Maybe it’s the thrill for trading the familiar for the unfamliliar. A personal dare. The only problem is once you’ve crossed it’s almost impossible to go back. But if you do manage to make it back across that line you find safety in numbers.