SUPERFLEX Radius arms were designed in 2008 for Competition Trucks to benefit from maximum articulation as well as Excellent High Speed Handling as well. Since their introduction to the Australian and overseas market there has been a huge trend towards choosing Superior Engineering SUPERFLEX Arms over the standard Radius Arm design. Why not have extra flex as well as good on road handling? Benefits of Superior Engineering SUPERFLEX Drop Radius Arms: . No cutting or permanent modifications to install. Just Bolt On! Manufactured from 350 grade steel High Tensile 20MNV6 Bush Eyes Massive 32mm main Beam thickness for maximum strength Rubber Bushes pre- fitted into arms Laser cut to precise measurement and caster location Authentic Superior Engineering Logo machined into side of Arms (Factory Sway bar will fit to allow safe on road handling) The Brackets to fit the sway bar and extensions are supplied at no extra cost They are manufactured to suit various lifts Sand blasted with rust prevention applied Powder Coated for maximum durability and finish 350 grade steel will not crack unlike Cast Radius Arms Adapter plates and bolts have a SA5 Zinc coating for rust prevention Allows vehicle to track correctly on road due to correct caster Maximum Clearance between the Tie Rod and the Radius Arms Factory bushes fit the SUPERFLEX ARMS , We dont use special sizes Bushes Superior Engineering’s Super flex arms are a Patented Design Patent No’s. 2008202797, 2010100451, 2011904187 Available in 2, 3, 4, 5, and 6 inch drops. Please specify your lift height. No Bushing Pressing as they come equipped already. If later you raise your lift height you can install bushings, plates, or drop brackets for the added lift. With the combination of drop radius arms, caster correction plates, bushings, and the Caster correction drop brackets- any height between 2″-16″ of lift can be corrected for. Made in Australia. Allow 2+weeks for delivery.