Power Steering Pump Pulley 3770509

[chevykevy]

I have a power steering pump pulley 3770509. It does not line up with my crank pulleys. I have the double tin pulley closest to the balancer and then the cast double pulley on the outside of that. I recall there is another pulley on my last build that I needed to get it lined up. Any ideas of the # and where to get one?

I am using the cast iron and steel fabricated mount.

[Jason Banks]

What year is your truck and what engine? Got a pic of the setup?

[Livrat]

I do believe with the double groove cast outer crank pulley you need the flat #3925537 pulley

[chevykevy]

Now that I look at it.....the pulley I have lines up with the 3rd groove from the engine, not the out most groove of the cast pulley. Maybe I should replace the cast pulley with a single tin pulley which will leave me with a three pulley total on the crank. I plan on adding AC .