Crankshaft pulley question

[ronnie4]

Would a 7mge/gte that came without AC from the factory only have ribs for 2 belts on the pulley instead of 3 and therefore be shorter?

 

[CyFi6]

Im pretty sure they all came with ac?

 

[benchwarmer]

I've never seen one without AC. I'm pretty sure there was only one part # for the pulley, as well, so there should only be one version.