Just buy a decent starter motor and the click will go away The only starting problems I've ever had were due to duff batteries so I haven't been through this. But from other members' stories of clicks and solutions there seem to be a range of causes including bad batteries, cruddy contacts, recalcitrant relays, smoke shortages and those problems inside starters. These probably interact. So I wouldn't start by replacing the starter: that might not fix the problem, and it might cost a lot more than is needed. Jonathan