hub nut off
lower balljoint off (undo the 2 bolts, easier)
pull hub off/away from driveshaft so driveshaft is free from hub
rip off old ring
grease up driveshaft face where ABS ring sits
gently tap on new ring and check its square
done
no, just ubolt it from the wishbone (2 x 18mm bolts) MUCH easier than splitting it