280ZXT 2+2s came in both manual and auto trannies. If you're swapping the entire setup (motor, T5 tranny, T-5 driveshaft, and 3.545 diff) over to your 2-seater NA 280ZX, then you'll most likely need to shorten the driveshaft...or if the 280ZXT in the pnp is a 2-seater and has the T-5, pull that T-5 driveshaft.