Help me identify which drive shaft I have

[totoro001]

hey all, I've got an 89 240sx, with a ka24de swap. The previous owner had the work done and he doesn't know much about it unfortunately.

When going through the car, I noticed that my drive shaft is missing a bolt that connects the drive shaft in front of the first CV joint to the flex disk.

Looking at pictures and going through catalogs, I'm having a difficult time figuring out what year/model drive shaft I have in order to pick up another bolt. From what I can tell, most of the 240 drive shafts didn't have flex disks.

It looks like the attached image. Any ideas what year/model it came off of?