Ok so I'm doing the swap but before I'm 100% committed to this I wanna know if there's anything to watch for? If someone's done it please reply so I'm not having to go there any issues that you may have ran into.

 

Haven't done this but I've read that it will have no effect as the intake manifold on a 3.9 is bored to the same diameter as the tb that comes on it. Not sure if this is true as again I haven't done it for myself. But other than that I think it's a direct bolt on. Good luck!