Spring - Raptor: Installation

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

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NOTE: Make sure the spring spacer is correctly seated between the axle and spring.

Install the 4WD spring spacer.

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NOTE: Tighten the fasteners with the suspension loaded or with the weight of the vehicle resting on the wheels and tires, otherwise incorrect clamp load and bushing damage may occur.

NOTE: Only tighten the nut and bolt to snug at this stage.

If necessary. Install a new shackle-to-spring bolt and nut.

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1. Position the spring and shackle assembly.
2. Raise the axle. Use the General Equipment: Vehicle/Axle Stands
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NOTE: Only tighten the nut and bolt to snug at this stage.

Install the new spring shackle-to-frame nut and bolt.

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NOTE: Only tighten the nut and bolt to snug at this stage.

Install the new spring-to-frame nut and bolt.

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1. Install spring clamp.
2. NOTE: Verify U-bolts are perpendicular and on center to leaf spring. Maintain equal side-to-side clearance to leaf spring stack when securing.
  
  Install the new U-bolts.
3. NOTE: Only tighten the nut and bolt to snug at this stage.
  
  Install the new U-bolt nuts.
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NOTE: Only tighten the nut and bolt to snug at this stage.

Install the new rear shock absorber lower nut and bolt.

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Install the wheel and tire. Refer to: Wheel and Tire .
Lower the vehicle until the weight of the vehicle is resting on the wheels and tires (curb height).
Tighten the new spring shackle-to-frame nut and bolt.
Torque: 173 lb.ft (235 Nm)

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Tighten the new spring-to-frame nut and bolt.
Torque: 258 lb.ft (350 Nm)

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If necessary. Tighten the new shackle-to-spring bolt and nut.
Torque: 173 lb.ft (235 Nm)

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Tighten the U-bolt nuts in a cross pattern in 4 stages.
Torque: Stage 1: 26 lb.ft (35 Nm) | Stage 2: 52 lb.ft (70 Nm) | Stage 3: 74 lb.ft (100 Nm) | Stage 4: 98 lb.ft (133 Nm)

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Tighten the new rear shock absorber lower nut and bolt.
Torque: 66 lb.ft (90 Nm)

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NOTE: If equipped with dynamic suspension.

NOTE: LH side only.

Connect the rear shock absorber electric connector and wiring harness clips.

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NOTE: If equipped with dynamic suspension.

NOTE: RH side only.

Connect the rear shock absorber electric connector and wiring harness clips.

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For the RH spring. Install the muffler. Refer to: Muffler - Vehicles With: Dual Exhaust System .
For the LH spring. Raise the fuel tank. Refer to: Fuel Tank .