Kryptonite’s Super Duty radius arm kit uses fully boxed fabricated arms with internal gussets, vulcanized bushings, and hex caster adjusters at +2°, +4°, and +6°. Sold as a pair for 2005-2026 F-250 through F-550.
Owners of 2005-2026 Ford Super Duty F-250/F-350/F-450/F-550 trucks who need stronger radius arms with caster correction.
| Truck | 2005–2026 Super Duty F250–F550 |
|---|---|
| Construction | Fully boxed fabricated arms (A36 steel per Kryptonite) |
| Caster | Selectable +2°, +4°, +6° |
| Sold as | Pair |
Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.
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