A LOT of external 340 stuff is same for 318, 273. Pulleys for the most part make no difference, but once you start playing the mix n match game it feels like your playing the "medicine cabinet" game lol.
I'll bolt the power steering pump on later later and see how the belt alignment is before I buy another pulley. The other problem is now people claim stuff is for a 340 and ask way too much money. So buying online will take some time.