assuming the wheel is off and by hub you mean disk, then fairly straight forward. i would replace the pads at the same time, so you would need 2 disks £20-40 pads £10-30. remove caliper remove caliper bracket, remove disk. fit new disks and pads. Remeber to bleed the caliper when pushing the piston back. ABS won't make much difference as long as you support the caliper and no cables or pipes to it are tight.
HTH if I understood the question corectly.
[huzeeee];10248117 said:Take off the wheel, caliper and disk, there shouldbe a huge castle nut in the middle of the hub, undo that and the hub should knock off with a hammer. Fit the new one in the reverse sequence. It should take no more than 2 hours, even if you have a very basic knowledge of cars. Plus make sure the big nut is tightened correctley and the split pin is put back through the big castle nut or yor wheel bearings will wear out quickley.
4 foot steel pipe on a ratchet. Then stand on it. It's a must need for big bolts on cars.The nut usually takes a lot of force to undo btw......i think i had my dads lifting off the ground before it cracks loose!
The pad carrier is attached to the hub(i think) so thats gotta come off aswell. Could also do with a hub puller if it doesnt come off with a hammer.
4 foot steel pipe on a ratchet. Then stand on it. It's a must need for big bolts on cars.