E 450 V8-5.4L (2009)
19. Turn the shim so the recess is facing upward.
20. Insert the shim between the rear spring and the spring seat.
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Position the shim so the center bolt through the spring leaves is in the shim recess, the stud on the bottom of the shim is in the spring seat
recess and the shim is aligned with the rear spring.
21. Install 2 new U-bolts and 4 new nuts.
With the vehicle at curb height, tighten the U-bolt nuts evenly in an X-type pattern in 5 stages.
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Stage 1: Tighten to 50 Nm (37 lb-ft).
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Stage 2: Tighten to 100 Nm (74 lb-ft).
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Stage 3: Tighten to 150 Nm (111 lb-ft).
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Stage 4: Tighten to 200 Nm (148 lb-ft).
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Stage 5: Tighten to 225 Nm (166 lb-ft).
22. Remove the support from the axle.
