won't go in gear

Got home from work today and went out and cranked the car and it still is hell to get in gear if it will go. Wants to grid in reverse like the clutch isn't working. But I know the clutch is good cause I checked it. So I went ahead and pulled the tranny and put it on the work bench. Pulled the inspection plate on the side and all looks good. I can slide both the shift forks side to side no problem. But it is hell to do it in the car.