GMC 15956510 Bar, Front Torsion

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To remove the torsion bar, first loosen the lug nuts of the front wheels and then lift up the car with jackstands. Take off the wheel and count how many threads are visible on the torsion bar adjuster bolt, indicating where he bolt is in relation to the nut for adjustment. Place a small push puller on dimple of adjuster arm and turn bolt until there is no tension, then remove adjusting nut. Note where torsion bar attaches to lower control arm and slide bar forward through arm until rear end clears cross member. Remove adjuster arm and pull down and back on torsion bar. If front of suspension hangs up in control arm, drive out with brass drift. Install by cleaning out lubricating hexagonal hole in control arm and greasing ends of torsion bars as well as adjuster arms and bolts. Ensure that marks match up correctly, tighten up the adjusting bolt so that equal number threads can be seen again. Measure clearance between arm and cross-member then set torsion bar accordingly as need arises. Put on wheel, let vehicle down while tightening lug nuts securely and finally find ride height at each side of vehicle's body before leveling it using torsion bars.

To complete the installation, you should install the wheel, lower the vehicle, and tighten the lug nuts. Finally, measure the ride height on each side and adjust the torsion bar until the vehicle sits level.

After removing the adjuster nut, you should mark the relationship of the torsion bar to the lower control arm. Then, push the bar forward through the arm until the rear end clears the crossmember.

After counting the threads on the adjuster bolt, you should install a small puller on the dimple of the adjuster arm and turn the bolt until all tension is removed. Then, remove the adjuster nut.