I received my Dinan pulley today.
To my surprise, the tracks on the pulley for the two belts are of significantly different diameters. The track for the power steering and A/C belt is smaller the the one for the alternator and water pump belt.
I have the "early" kit with the single sided belt, I don't know if it has anything to do with it.
The first chance I have, I will bring it to work to get it measured. I will post back the results.