F 150 2WD Pickup V8-4.6L VIN W (2006)
Suspension Spring ( Coil / Leaf ): Service and Repair
Leaf Spring
Spring
Special Tool(s)
CAUTION: Suspension fasteners are critical components because they affect performance of vital components and systems and their failure can
result in major service expense. New fasteners must be installed with the same component number or an equivalent component if installation is
necessary. Do not use a replacement component of lesser quality or substitute design. Torque values must be used as specified during reassembly to
make sure of correct retention of these components. Orientation of the fasteners is also important. Make sure the fasteners are installed in the same
direction as they were in when removed.
1. With the vehicle in NEUTRAL, position it on a hoist.
2. If removing the left rear spring, lower the fuel tank to gain access to the spring shackle bolt.
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To install, tighten to 300 Nm (222 ft. lbs.).
3. WARNING: Lower the rear axle only enough to gain access to the rear spring.
Use the jack to support and lower the rear axle housing assembly.
4. Remove the lower shock absorber bolt.
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To install, tighten to 90 Nm (66 ft. lbs.).
5. If removing the right rear spring, remove the muffler to gain access to the spring shackle bolt.
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To install, tighten to 300 Nm (222 ft. lbs.).
6. Remove the rear spring shackle bolt.
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To install, tighten to 133 Nm (98 ft. lbs.).
7. Remove the 4 U-bolt nuts and the U-bolt plate.
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Tighten in a cross pattern to 30 Nm (22 ft. lbs.) in 3 steps.
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Light duty: To install, tighten to 115 Nm (85 ft. lbs.).
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Heavy duty: To install, tighten to 250 Nm (184 ft. lbs.).
8. Remove the spring and the U-bolts.
9. On 4WD vehicles, make sure the spacer is correctly seated between the axle and spring stack with the nose pointed inward.
10. To install, reverse the removal procedure.
