just get remanufactured ones.... ones direct from toyota last a lot longer but are kinda expensive.... i think they were $110 a piece after getting the core back that was unloaded as well.... but you can get them loaded from several auto supliers... i think the last set i got was autopride they were $88 for both calipers, loaded with all new hardware... just bolt em on, bleed em and you are ready to go...