I got a trans from a 4 door rs acura with the shift linkage as well. Is there any difference between the rs models or is it just a typical ls tranny?

I also noticed there was new gasket material around the casing, and I took the speed sensor out and it looks pretty dam clean. What I wanna know, is there any other way to check(besides crackin it open) to see if its clean or if any parts we're replaced inside??

And what speed sensor do I use for the trans?? The weird pump acura sensor, or the stock one from my old trans(ef dx model)???