A Dodge Durango steering box fit 97 - 02 TJ's. I believe a YJ steering box will bolt up, but the input shaft has a larger OD and different number of splines.
06 Wrangler Unlimited Khaki, Congo Cage, D30 w/Aussie & D44 w/ Limited slip and 3.73 gears, 231HD transfer case with 2LOW and JB Conversions SYE with a Tom Woods DS. LIFT: Full Traction 4" Ultimate lift and JKS BL, Brown Dog MML. SKIDS: Jeep Medic TT and Oil Pan, Warn Gas Tank, and Rusty's Steering Box & Radiator. STEERING: ZJ steering, and PCS Steering Box. Running on 35" BF Goodrich Mud Terrains. And to ruin the look, I added Warn 6" flares to keep it legal.