cannizzo-racing1990

can the front hubs be replaced on a crx not the whole assembly but just the hub .....because i have a hf and i have a zc in it i can get the right axles....and i was told the i need to get si hubs and relace my hf hubs with them and i cant find the whole spindale assembly so i was wondering if i can press out my hf hub and press in a si hub but still use the hf spindle assembly...and if non of those are an option what can i do