how can you tell a differnce from a TII tranny from a NA by looking at it

 

The TII tranny has a oil pan on the bottom of it.

 

TII transmission housings have reinforcement ribs.

 

t2 trannys got 2 drain plugs i believe instead of the NA that has 1 plug..

 

i believe the tii tranny doesnt have the black plate (or it does) inside the bell housing.

 

will an S5 TII engine line up with an S4 N/A mt?

 

with the NA clutch/flywheel combo yes

 

TII Transmission: Ribbed, 4 plugs (1 Fill & 1 Inspection on side, 2 Drain on bottom)

NA Transmission: Smooth, 2 plugs (1 Fill on side, 1 Drain on bottom)

Pics here:
http://www.16paws.com/rx7/index.html

Note: The RX-2,3,4,5 transmissions were ribbed, so be careful at the salvage yard.

The NA clutch slave cylinder and starter are also required when using an NA transmission with a TII engine. Also as a note for the newbies out there, the TII transmission, driveshaft, and differential do not bolt to the NA 5-speed components.