hey guys i am a proud new owner of a b 210 datsun well iam in the processof trying to rebuild the gearbox because its been pissing gear oil out of it at idle anyways i started to tear down the box but ihave run into some trouble the only thhe that has stop me from removing the outer casing is the piece where the shifter connects to the main selector fork i have removed the locking pin but the shifter housing only moves along a grove part wy and it wont move any further up i have look to see if its being held by a pin or clip but i cant see any can any of you guys give me any ideas well thanks