Will a 280ZX 2 5 SPEED transmission fit in seater AUTOMATIC?
Yes, a 280ZX 2+2 5-speed transmission will fit into a 280ZX 2-seater automatic. The transmissions are interchangeable and will bolt up to the engine and driveshaft without any modifications. However, you will need to change the driveshaft and rear differential to match the transmission. The 280ZX 2-seater automatic has a 3.54:1 rear differential, while the 280ZX 2+2 5-speed has a 3.90:1 rear differential. You will therefore need to install the 3.90:1 rear differential in the 280ZX 2-seater in order to use the 5-speed transmission.