I went through this over and over and over with Matt. He had his frame height too low for 35's under some misguided notion that it was more stable. (in perspective, he was 83" outside of tire to outside of tire. My rig on 40's and a 67" WMS to WMS is 84") He was grinding up everything under the rig dragging it over the rocks in JV. Bumper, frame mounts, body mounts (raised ones no less) aluminum boat sides, belly skid, everything under the rig was just getting beat to shit. He cut off the front and raised the front bumper, steering, and frame to compensate and then shortly thereafter finally put coil overs on with 4" of ride height over stock and it all went away. Had he done that first, there would have been a whole lot less damage, I wouldn't have had to listen to and explain for hours why the rear mounts pretty much have to be the way they are so he would leave them the fuck alone and just fix the real problem.
You need to get the 35's you know you are going to wind up with and go be happy.