06' Taco Coil Over Spring Replacement!

I am replacing the shocks all the way around and I am curious about the coil springs. I decided to go with the Billstien 5100 series for the shocks and wanted to know what coil springs I should use to replace the factory ones? I am purchasing them from autoanything and they did not give me an option to get complete front assembly for Billstien. Any tips or suggestions would be appreciated as far are doing the fronts. Also, the 5100's are ride height adjustable. If I install them right out of the box do I have to make any height adjustments or will they be set to factory?

 

you can use your factory coil if you want to. or buy some ome 885 or eibach 600 lb coils. they should come with 3 different settings, you choose which one you want to use. are you looking for any lift out of you 5100s