S&B | 2017-2022 Ford Super Duty 4WD Radius Arm Drop Kit - 4.5 Inch Lift

For 2017-2022 Super Duty applications with 4.5" lifts.

• Fits 2017-2022 Superduty F250 F350 F450 F550 ONLY 
• It will make the castor 5 degrees +/- 1 while at 4.5" of lift.
• Lower arm angle enhances ride quality. 
• 3 points of mounting contact to improve rigidity
  
• Crossmember between drop brackets for even more strength.