guys, i just used the WD40 method to clean all my bearings last nite. well, it work out great. thanks, but those WD40 makes me headache coz i have to spray into a container, shake it, then spray each bearing to get all the dirt out. keke.. it works, not as difficult as it seems, but yes, its very time consuming, but heh, u have to take care of the car, so that the car can take care of u when u are at track rite? cheers.