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Ford Trucks Enginnering Long Travel Suspension Radius Arms

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The radius arms on I-beam suspensions are typically lengthened to reduce caster change as the suspension cycles. In extreme cases, the radius arms are welded onto the beams to make what some refer to as a J-arm suspension. In this photo you can see the extensive work that LeDuc puts into the factory beams and his weld-on radius arms.
The First Long-Travel Suspension

 The radius arms on I-beam suspensions are typically lengthened to reduce caster change as the suspension cycles. In extreme cases, the radius arms are welded onto the beams to make what some refer to as a J-arm suspension. In this photo you can see the extensive work that LeDuc puts into the factory beams and his weld-on radius arms.  View Related Article

 

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