518 short shifts and no od

11.2 said
So the tighter the earlier the shifts ?

The tighter the cable, the later the shifts.
I was thinking you might have it so tight that OD will never come on because most TF transmissions shift into second way before 20. (Stock without a shift kit anyway)

11.2 said
ive been trying to educate myself on these trannys. there's alot of talk about the governor. my tranny has some diesel internal, i'm not sure on what exactly but i know the od unit is diesel and valve body is gas, is it possible the wrong governor was used and could cause this?

I know the springs are different, but don't remember how.
This wouldn't cause the second gear shift in manual low, but it very well coud cause shift point issue's. (it's possible)