I have a 2007, 2 door Rubicon with a TF leveling kit, 1.5" spacers and flat fenders on 35s. Paired with the stock Rubicon lift, I have had no issues with rubbing or bottoming out. However, I recently upgraded my rear bumper from a lightweight aluminum tubular one to a Bestop HighRock rear with a carrier. Given the added weight and the tire my rear is sagging a bit. It even rubs the inner plastic inner fenders a bit and sometimes bottoms out when I hit larger bumps. The inner fenders I can trim or just remove but I want to upgrade the springs to regain the ride height and stiffness I once had. I have the stock springs that came with the Rubicon so what would be a solid upgrade without going full lift kit that will give me the desired ride height in the rear?