Radius arms and alarms

[Howard2x4x4]

Asking for a friend, are the radius arms and caps for all EB model years the same and witchable side to side? They seem to be built battle -tough. What would cause a used set to be unusable? Thanks. Howard in beautiful west Michigan

 

[Glass Pony]

The rot around where the radius arm bushings are located.

 

[Broncobowsher]

Rot under the rubber bushings is the death of most of them. Some are rather pretzel shaped from people trying to align the front end and just bending the arms to get caster,

 

[Apogee]

They're all the same, more or less, between the EB, F150, and 78-79 Bronco applications, except the full-size applications used 7/16" fasteners for the spring cups, whereas the EB's use 3/8" IIRC.

 

[Howard2x4x4]

Thank you all. Good answers!

 

[Broncobowsher]

Full size also has different bolt spacing on the spring cups/retainers. Nothing that can't be overcome with a drill.