what's your overall width over the tires? I have 16x2.0" coilovers in the rear and it was a VERY tight fit with 35's and the coilovers outside the frame rails. It would rub either the bottom edge of the frame or the edge of the tire, depending on if it was drooped or compressed. one thing i did that helped was run fairly tall shock mounts on top of the axle. the longer they are, the less the shock swings at the lower eyelet when articulated, so it doesnt move as close to the tire or frame rail. I believe i was 76" wide in the rear with a 35x12.5 tire at the time. Your best bet is to notch the frame.
Also, any reason why you have your chassis lower control arm bracket faced in that direction? having the ramped side facing towards the front helps a ton for dragging over rocks.