this is a GSr tranny and the problem im having is the casing isnt comen down on the tranny completely i bought the tranny like this and i compared it to another open gsr tranny i seen on the internet and everything lookd good except the bearing on the top of the main shaft and thats what i think is stoping the casing from comen down !

before i take it to a tranny shop i wana make sure it isnt nuthing major that i cant do myself and i need this tranny in before aug 1st

does any one know whats wrong from the pictures ? ..