Your control arms are SUPPOSED to flex like that. Lift it by the frame.
2000 TJ Sport, 4.0L, 5-spd, RE 3.5" with all 8 adj arms and adj trackbars with 35"s, D30 w/ Lockright, 8.8 rear axle, sye and CV driveshaft, M.O.R.E. 1" BL and MML, IPF headlights w/ H4 FATBOY bulbs, PSC power steering skid, rock-it man rockers, uniden pro 520xl WITH PA :)
Future mods: 4.88s and ARBs?, belly up, dif guards, Gastank Skid.