You can go with D25 springs that give you about 2. 5-3" , +1/2 links, adjustable trac bar. That will give you enough clearance to run 315's and the wheel you describe without any rubbing problems. Without the longer links and trac bar you will have all kinds of problems with rubbing, like mentioned above. I run this set up I've mentioned and have no link or wheel rubbing at all, not even 4x4ing. Just a note also I tried to put the 35's on with the just the 2"blocks to see how they would fit, and they would not turn at all. Make sure you have the proper offset also on your wheels, I would'nt go less than 4. 5" or you will run into some problems. Also each truck is a little different. Good luck.
Who makes the 315/70/16 I dont think you can get that size in BFG.