I have a 05 screw 4x4 that I have a 2" leveling kit on. I'm running 305/70R18 on my stock 18" wheels. I am going to be replacing my front wheel bearings. At the same time I will be replacing my oe front struts and rear shocks with Bilstein 5100's. I have a Viair compressor and tank that I'm going to put on with a set of Air Lift Load Lifter 5000's. I was thinking about putting a set of the heavy front spring on when I do the Bilstein's. Any thoughts. I pull trailers around quite a bit, firewood and derby cars, stuff like that.