RPlais12

This 91 is new to me. My drive shaft bolts ( standard Toyota ) are too short only 1/2 nut is threaded. I checked around and the problem is the yokes are too thick and not Toyota. They are casting # C-22459. I need new Toyota flange yokes.
Question I have is. The current drive shaft is a slip yoke in back of trans / ujoint / shaft / center bearing / flange. Back shaft is the I’ll fitting Nissan flange / shaft / another Nissan flange bolting straight to the dif. Is this the normal set up ? I cannot find any photos or a shaft avail from APW or Rock.
Shoukd I get longer bolts and run with these yokes ? I can buy some case hard 10mm Thanks for any help. I d like to just buy new unjoints and the correct yokes if everyone thinks this set up is okay / normal. It seems any forward movement on the rear shaft has to bump through the center bearing to get to the slip yoke into the rear of trans. Just seems like the rear shaft should have a slip yoke.