Appears to be only 1st Gen only:
http://www.datsunzgarage.com/borg/index.htm
DRIVESHAFT (the tricky part in a 1st generation Z)
The Nissan T5 came with a special driveshaft to fit the 280ZX. It is stouter and fatter than other Z driveshafts, has a different spline count on the front end, and a square flange on the rear. In other words, the only driveshaft that will fit the T5 is the one that came with it. A 240/260/280 driveshaft cannot be modified to fit.
LENGTH: The T5 driveshaft is almost the same length as regular Zcar driveshaft, but the T5 transmission is a few inches longer. This means if you use a Nissan T5 trans/driveshaft in a first generation Z the driveshaft will be too long by about 2-3 inches.The solution is to have a custom driveshaft made, or have the stock one shortened. Most driveshaft shops can fabricate one if you tell them what you want, about $300. A cheaper solution for us budget ZCAR people is to have the stock one shortened and rewelded, about $100. This gets tricky because driveshafts should be shortened only at the ends for balance reasons. And for some reason Nissan T5 driveshafts neck down to smaller diameters right at the flanges. This means that after cutting, the yoke and flange ends are too small to weld up to the center tube.
But I went down to the local racing machine shop that does my head work in Richmond, Va (Ballos Machine). The owner used to race and make his own driveshafts and said he would take a stab at it. Somehow he broke the law of physics and cut both ends, shortened it, and magically rewelded a perfect bead for $90. It may not be perfect for a 500hp nitrous Z, but on a 6-cyl 2,200 lb car it works great. Don't believe a shop when they say it can't be done.