This is copied from the 'Related Question' below:
To begin, jack up the car and remove the wheel. Be certain the car is stable and will not roll off jack(s)!
A lot of folks like to think this is complicated and hard without some difficult tools, but it's so easy compared to a ball joint, it's scary.
Remove the brake caliber and the brake pads/rotor. Support the brake caliper with a wire connected to the Strut Tower.
Remove the spindle nut on the end of the drive axle. On the opposite side of the hub bearing are 3 bolts that hold it in there. Using a short-socket 15-18mm and a breaker bar or 1/2'' ratchet, loosen each of the bolts, then once all are loosened, remove them.
Believe it or not, unless the hub assembly is damaged, this thing will litterally fall out (in my case on my foot). Just take grease, (I like axle grease) and slide the new one in, aligning the holes, and getting the bolts back in the right place. Tighten them once all are in place. Put your car back together, retighten the axle nut, (with washer) and your done.
They tried to tell me at various places I needed all sorts of tools, and couldn't do this myself, but on the 1998 Sable, it couldn't have been easier. Now contrast that to the Ball Joint, which is so hard, I'd have taken that to a mechanic had I had the money.
REMOVE FRONT WHEEL, BRAKE CALIPER (13MM SOCKET); CALIPER MOUNTING BRACKET (15MM)AND AXLE NUT. YOU'LL THEN BE ABLE MOVE THE HUB ASSEMBLY IN A TINY BIT TO MAKE IT EASIER TO REMOVE THE 3 BOLTS THAT HOLD THE HUB ON. WHEN YOU TIGHTEN THE AXLE NUT DONT BE AFRAID TO MAKE IT EXTREMELY TIGHT 250FT LBS