On my car the power steering belt also powers the water pump/fan. I'd run a single belt for that, but there's no adjustment to tighten the belt in either the crank or water pump pulley. I've been looking at photo's but so far it seems the cars I've seen either manual steering or A/C, but not both. I know you could get power steering without A/C, but I wonder if you could get A/C without power steering...