Transmission gears out of sync.

[Npt 383]

Hi everyone . Just re fitted trans after rebuild and now all the shift points are wrong.
Just reconnected the linkage as it was when I removed the gearbox.
Is it because there isn't enough fluid?

 

[Big_John]

Check fluid with engine running, trans in neutral??

What about the throttle linkage (some wrongly call it kickdown). Has that been adjusted per the FSM?

What engine and trans?