03 2500 HD pickup.
Trans ran out of fluid due to line failure.
Now all shift handle positions are forward only, even neutral and park.
And reverse becomes forward and reverse simultaneously, with the result being tube locked.
No reverse.
Any easy solutions?
How about moderate solutions?

 

was it towed? anything disconnected when towed?

so you repaired the line, filled it with fluid
clarifications needed...shift handle positions -are you referring to the prndl display
when you put it in reverse; the prndl displays drive and you have no reverse?
maybe a video would help.