Those are both external pieces, not too difficult, but have you considered that it is your synchros going bad? That would be an internal problem and mean you need at least a partial rebuild. The cylinders...master is on the pedal, slave is on the transmission, should be bolt in replacements, refill with FSM specified hydro fluid and bleed. On subsequent test drive pray there are no bad grinding sounds. If bad grinding sounds persist, pull tranny and get new synchros and bearings. It is fun for the whole family. Or pull tranny and
