Gear Shafts

After putting the cranckcase halfs back together on my 97 trophy 3 i cant turn the gear shafts independantly of each other!! Have i missed something??? Thanks stewart.....

 

Does it select gears or is it jammed?
Did you line up selectors with gear channels properly before fitting??

 

Yes i beleive the selector forks are in the right place but they are the only thing that would affect the shafts they turn freely but when i nip down the lower case something binds them up!!!