Warning on the caps! They don't fit. The pwoplw that went to put Zo's on crushed them By putting them on the rim. You see, they go on from the back and there's not enough room from the hub backing to the rim. So, don't put them on. I'm being serious.
Unless yu can get the caps machined down so the will have enough room. But be careful, check it out first. Who know's, your hubs may allow enough room.