I'm doing the swap now! I'm useing the Toy front drive shaft for the rear of the Zuk! If you have the 14mm bolt size for the t-case flange then it will bolt up, if not then you'll have to drill the t-case flange on the Zuk.
There must be a bolt size/pattern difference between the different toyota production years.
I checked the bolt pattern on my front toyota drive shaft from the 1980. It does not mate with either size zuk bolt size/pattern. The flanges also will not mate without removing metal from either flange.
What year toyota did your toyota front drive shaft come from ?
The front Double Cardan bolt flange patern is bigger then the Large suzuki flange, but the other side is the same as the large flange .. you can contact SkyMfg for the adapter [email protected] I believe .. he is also on the topica board and said his web site should be in less then a week.
The machined circle in the middle of the Toy or Zuk driveshaft flange is called a pilot. The diameter's of the Toy vs. Zuk pilots are not the same. You can get away with using a 85.5-and-newer Samurai yoke with the newer Toy pattern - the bolt holes line up nicely. But when you start redrilling bolt holes, the whole thing won't be aligned because of that ~1/6" difference in the pilot diameters.
BTW - not sure how the earlier Toy vs. Sam patterns compare...