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Kit image shown with Fox 2.0 IFP Shocks

Kit image shown with Fox 2.0 IFP Shocks

2.5" Radius Arm Lift Kit

  • *Approx Price: $1,671.72
  • Front (base kit): 2.5" Radius Arm/Coil Spring
  • Rear (base kit): 1" Block
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Kit image shown with Fox 2.0 IFP Shocks

Kit Components

Accessories & Pricing


Qty Part# Description
1 013108 2017-2020 F250/F350 1in Rear Block Kit
1 013261 2020 F250/350 2.5in Front Box Kit
1 033251 2005-19 Super Duty 2.5in Front Coils-dsl
1 123251 Radius Arm Box Kit
2 85717 Shock- 29.80 x 17.60 x 2-3/8 - EB1/EB1
2 85720 Shock- 24.00 x 14.50 x 2-3/8 - S50/EB2
Qty Part# Description Price
    Total $1,671.72

Important Kit Notes

  • 1. Designed for use on diesel models, but can be installed on gas model trucks (will achieve an additional 1/2" front ride height).
  • 2. Larger tires on stock wheels are not recommended due to brakeline clearance required. Use recommended specifications listed in tire and wheel fitment section.
  • 3. Track bar mounting hardware requires torque spec of 405 ft-lbs .
  • 4. Steering on F250/F350 trucks can be stiff from the factory. Replacement radius arms with increased caster typically help this issue. The base 2.5" lift with ball joint cams and/or steering stabilizer options will not fix this problem. We have had success in reducing the torque specification to 85 ft-lbs for the upper ball joint. Use this as a last resort to cure factory steering issues.
  • 5. Due to taller factory ride height, Tremor models will not net full advertised lift height. Final ride height will be the same as standard models.
  • 2.5" Radius Arm Lift Kit

  • Front (base kit):

    2.5" Radius Arm/Coil Spring

  • Rear (base kit):

    1" Block

  • Kit Price

    $1,671.72

Base Kit Components 1549

These components are subject to change based upon your selections.

Qty Part# Description
(1) 013108 2017-2020 F250/F350 1in Rear Block Kit
(1) 013261 2020 F250/350 2.5in Front Box Kit
(1) 033251 2005-19 Super Duty 2.5in Front Coils-dsl
(1) 123251 Radius Arm Box Kit
(2) 85717 Shock- 29.80 x 17.60 x 2-3/8 - EB1/EB1
(2) 85720 Shock- 24.00 x 14.50 x 2-3/8 - S50/EB2

Compatible Vehicles

These vehicles also are compatible with this product.
Click on a vehicle to see other available kits.

Make Model Year Range
Ford F250/F350 Super Duty 2020-2021

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Important Kit Notes

  • 1. Designed for use on diesel models, but can be installed on gas model trucks (will achieve an additional 1/2" front ride height).
  • 2. Larger tires on stock wheels are not recommended due to brakeline clearance required. Use recommended specifications listed in tire and wheel fitment section.
  • 3. Track bar mounting hardware requires torque spec of 405 ft-lbs .
  • 4. Steering on F250/F350 trucks can be stiff from the factory. Replacement radius arms with increased caster typically help this issue. The base 2.5" lift with ball joint cams and/or steering stabilizer options will not fix this problem. We have had success in reducing the torque specification to 85 ft-lbs for the upper ball joint. Use this as a last resort to cure factory steering issues.
  • 5. Due to taller factory ride height, Tremor models will not net full advertised lift height. Final ride height will be the same as standard models.

Next: Steering Stabilizer


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