Just do it right to start with....
Road wheel off, brake caliper off and tied out the way, undo the 7 bolts that hold the swivel onto the axle case, swivel out complete with drive shaf t& CV in situe, undo the small bolts that hold the seal in position, new seal in and assembly is the reverse of disassembly. Oh and the whole thing out in a oner is bl**dy heavy
If your steering has gone heavy you may be too late for a quick fix. The CV joint may well have already eaten itself.
Best strip it right down before an accident is caused