I know this is a crappy first post but I got no choice, just found the site yesterday. Anyhow I got a 01 grand prix gt and the tranny went so now I need another one. My buddy has a garage and will put it in at a discount. I've been looking for a tranny the last couple of days and found an 03 Buick Lesabre 4T65E and was wondering if this will work in the grand prix...I found a tranny from an 03 grand prix too but the miles are significantly higher and would rather use the buick one if I could. Guys I kinda need the info in a hurry since I'm car less and don't want my gurl to keep driving me around in her little gurly car! Any info would be greatly appreciated! Thanks guys....oh I used the search function but couldn't find anything.