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Home >> Ford >> 2012 >> Mustang Boss 302 >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Rear Suspension -- F250-F550 Super Duty) >> Removal And Installation >> Spring - F-450, F-550 >> Removal

Spring - F-450, F-550: Removal

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Suspension fasteners are critical components because they affect performance of vital components and systems and their failure can result in major service expense. Install new components with the same component number or an equivalent component if installation is necessary. Do not use an installation 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.
  1. Remove the wheel and tire. For additional information, refer to WHEELS AND TIRES .
  2. Using a suitable jack, support the rear axle.
  3. Remove and discard the U-bolt nuts, then remove the bottom cap.
  4. Remove and discard the U-bolts.
  5. Remove and discard the spring-to-front bracket bolt and nut.
  6. Remove and discard the shackle-to-rear bracket bolt and flagnut.
  7. Remove the rear spring assembly.
  8. Remove and discard the spring-to-shackle nut and bolt and remove the rear spring shackle.
  9. If necessary, remove the auxiliary spring.
    1. Remove the auxiliary spring nut.
    2. Remove the upper spring plate.
    3. Remove the auxiliary spring.
    4. Remove the auxiliary spring spacer.
Fig 1: Identifying Upper Spring Plate, Auxiliary Spring, Auxiliary Spring Spacer And Auxiliary Spring Nut
G06776431Courtesy of FORD MOTOR CO.
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