I am working on raising a 1999 Gmc Sierra that I've had lowered at a 2/4 drop for sometime. I am taking the truck back to stock ride height and I am going to keep the 17" Boyd Coddington rims . I am going to purchase either all terrain or mud terrain BFG tires. Does anyone have any idea whats the largest tire I can fit on the stock ride height is???Please let me know.