How do you replace a rear wheel bearing on a 1997 Toyota Corolla?

first remove hubcap (if any) then remove the wheel. remove the drum, and you will see the hub/bearing unit, it should be bought at a Toyota dealer as a whole kinda pricey, but always try to stay with OEM. look behind the hub and as you turn the hub(where the 4 lugs are) you will see 4 other 14mm bolts on the black backing plate. remove them and it should come out. if not, a little tap with a rubber mallet will do the trick. the 2 holes on top are spaced further than the 2 bottom holes, so careful while installing. hand tighten all bolts first then tighten to specs. good luck