Not sure if you need any other info...hard to follow the thread.
The np208 was used behind the TH350, TH400, 700r4 and SM465.
Difference being the spline count, 27 on 1/2 ton and 30 on others.
The np241 started in 89 with a mech speedo and went elec for 90-91 with right hand drop. In the K5 and...