I bought a set of used u/d pulleys off ebay and it didnt come with the crankshaft pulley. I do, on the other hand, have the alternator and water pump pulleys. Can and should I install these without the crankshaft pulley?
yah.. it'll work perfectly fine with just the two pulleys.. my car only has the water pump/alternator pulleys on it. I still need to get the crank pulley on, it did give hp gains but not as much as it would with the crank pulley.