radius arms

[fordman]

which are the best to use when dong a disc brake swap? the cast ones or the stamped steel ones the come from the donor truck?

[FORDification]

The bumpside trucks' radius arms aren't cast, they're forged steel, and are stronger than the stamped-steel version from the dentside era. But either would work just fine for most people.

I'd keep my eyes open for the extended-length dentside pieces used with a factory sway bar, so you could upgrade to that down the road.