Hello New to the form
just bought a 89 rx-7 vert that needs a transmission swaped. I received a T2/transmission with the purchase. Just wanted to be clear on the interchange with t2 and N/a. Clutches and throwout Bearing starter pilot bushing drive spline and Anything I should know.???

 

The NA and T2 trans use a different driveshaft. I cannot recall the other differences off the top of my head, a search should come up with others.

 

If you want to keep the rest of the NA drivetrain, then you need:

-TII flywheel
-TII clutch
-TII slave cylinder
-TII starter
-TII mount

Then a custom driveshaft to connect the longer transmission to the NA differential. Mazdatrix sells such a driveshaft here:
https://www.mazdatrix.com/g9.htm

Or you can have your local driveline shop make one up.