69 FJ40 with the original F engine rebuilt. I swapped a in a 4spd trans on which the transfer case dates as a 7/78-7/80. I went with all the info I could find on here and got a set of 4spd drive shafts. Even with swapping out the yoke ends of the 3spd shafts they are not close to fitting. The rear shaft is looking to be at least an inch to long even at full compression and the front shaft is looking about 2-3" to short. Any suggestions where I am going wrong?
In pics the 3spd shafts are on the top and 4spd on bottom.
In pics the 3spd shafts are on the top and 4spd on bottom.