What was the correct fan set up for a 68 340 with AC?

7 blade, clutch fan with a spacer?

Im about ready to fire up my car again but I can see I have some clearance issues now that I have put the AC components back on.

The fan I have now is the Mopar Performance, clutch fan without a spacer. I could solve everything by going to a 3/4" to 1" spacer but I think I would prefer to go with the correct, factory parts.