planning of fitting hubs and rest of set up this week to my 1.8 focus, will i need to use the shafts of the st170 or will my exsisting driveshafts fit into the splines on the st170 hubs, cheers

also if i do need to use the st shafts will i be able to split them so i just use the outter shaft for the hub and use my normal shaft from the box and join them up?? if ya get what i mean! cheers