shifting issues

2manyprojects

1940 hudson new clutch, throw out bearing installed. when starting the car in neutral can not shift into gear due to loud grinding noise. if car is off can shift the gears no problem. so we have to pull car forward to get clutch to release. then we start and it shifts perfect driving down the road. when parking and leaving in neutral or in gear no matter if for 1 day or a week we need to do the entire process of pulling with another car to release it. we have adjusted the cable on the shifter by loosening the nut and sliding the bracket to every position but this has not helped.  i believe the clutch fluid is full ,should i drain the fluid and install a new pre-measured bottle or do i have a different issue? thank you