THe CV shafts should have both a groove for the snap ring AND should have a threaded hole to accept the bolt & washer-tenntaco said:
I've seen both on various year Tacomas-
Also- I think the Aisn hubs were redesigned after 96/97 -
Even though they are interchangeable- there was a slight difference in the inner hub- the older one consisted of more parts whereas the newer ones are a solid chunk.
I can post some pics of my collection of manula hub & hub parts