I have an 07' F150 4X4 w/ leveling kit and 3" rear blocks and the rear needs alittle more height. I was thinking of adding a leaf. what would you recomend?

 

I just went through this decision myself and ended up moving away from Tuff Country and Pro Comp and went with Autospring. I bought them directly from AS and have read a bunch of good user reviews on them. AS claims a 950lb payload cap. increase.