Based on having less track I would have a larger selection of wheels with no or negative offset. I would be able to use adjustable lower control arms to get more camber instead of needing camber tops to stop wheels hanging too far out. Also turn without outer edge of wheels touching front of wheel arch. But that's all based on stanza having less offset to R31. I have both struts in a family workshop, next time I'm around I'll do some measurements.

If they are both the same maybe I should sell both sets and try to find some 280zx struts. Its funny how I wouldn't have a problem if I only had one set to choose from. I suppose I'm lucky to have an option.