Do you have a photo of what you're talking about? I'm not quite grasping what the difference would look like on my application. Are you saying the offset is different of the pulley also? Or just the way the pulley mounts?
One bolts on the balancer inboard next to the timing cover, the other bolts on the radiator side. They're two different pulleys. Some cars use both, some one or the other, some, like yours didn't use an extra pulley at all.
