can the 4l60 trans tailshaft from a 95 t.a work on a th350 for a swap so the speedo gears/sensors can all work again

 

No the tail is to long for the short tail 350 and to short for the long tail 350 . You can however if its a short tail put the reluctor on the 350 tail shaft and use the tailing housing with the large hole like came on some models with the early 4l60e speed sensor and a pigtail change to hook it up . If its the long type 9 inch tail 350 you will have to get some sort of adapter as I do not think it ever came with the large speed hole.