Normally the inner tie rod threads into the rack and there is a flat of some sort at the rack end to allow use of an open spanner to remove/ install it. However, if you plan to renew it then the tracking will almost certainly need to be checked afterwards, as the front track is adjusted by threading the inner tie rod in or out of the outer part (the part with the ball joint that locates in the wheel knuckle), and as you will disturb this by doing the job there is a good chance you will alter the tracking. If you're careful it may be possible to count the number of turns to unthread the outer track rod end from the old inner rod and fit the new one ensuring you wind it in exactly the same number of turns but it would still be prudent to get the tracking checked afterwards. Finally- the locknut between the outer and inner tie rods (that keeps them locked in position once adjusted) is exposed to all the crud thrown up from the road and is likely to be very tight to crack off- a good soak in penetrating oil and maybe some heat may be required to free it!
