Nissan 49001-4W000 Power Steering Gear & Linkage

From beneath the vehicle, loosen the front wheel nuts. Then lift up the front end, place jackstands, apply the parking brake, and take off the front wheels. To get to the front stabilizer bar bracket bolts, first take off the vehicle's under-guard, then move the crossmember brace. Remember, the Pathfinder requires you to remove this brace before reaching these bolts. Look at the positioning of the transfer gear coupler shaft in relation to the Rack And Pinion input shaft. Remove the pinch bolt keeping everything in proper alignment, using the gap in the coupler to match the line on the cap, which should point to the gear housing protrusion when the steering gear is centered. First disconnect the tie-rod ends from both steering knuckles, take off the brackets for the swaybar, and place a drain pan right under the steering gear to catch any fluid leaks. Take off the bolts that hold the banjo lines connected to power steering's pressure and return sides. Disconnect the lines from the steering gear unit. Cap the lines to stop leaks, and dump out and throw away the sealing washers you find there. You need fresh replacement washers when installing everything again. Separate the power steering pressure line fastening bolts from the crossmember front, take out the bolts, and take off the brackets as you disconnect the connecting shaft, while lowering the steering equipment from the car. Setting up the new rack goes the other way, making sure it sits correctly in the gear box: line up the point on the cover lid match with housing's mark, and put the gear coupler tube gap over its matching spot. First, tighten all parts to the correct torque rating, then apply force to wheel lug nuts to meet torque specifications, view and add fluid to power steering where necessary, and finish with pressurized fluid flushing.