g'day tim the spiggot bearing in my 1ggte is a roller bearing type. this is the first time i've seen this, i'm more used to chevs and holdens and they use a bronze solid bush. rather than chance a toyota price on a new one just go down to a bearing supplier. it should only cost a couple of bucks.
best of luck, dave
ps. i made a spiggot beaing remover out of a dyna-bolt and a length of exhaust tube - works a treat, good enough to re-use the bearing if i was that stupid.(er...cheap)