Radius Arm Drop, Standard - 5 Degrees Castor at 2.5in Lift [2005-2022]

One Up Offroad
*If an item is on backorder, we generally ship it within 4 to 6 weeks. Some parts may have an active backorder list, so be sure to place an order to be added to the list. We ship parts in the order that requests are received.
(You save $23.00 )
(1 review)
21 LBS
12 (in)  
12 (in)  
12 (in)
Current Stock:
(You save $23.00 )
Adding to cart… The item has been added

#105070 - Radius Arm Drop, Standard, 5 Degrees Castor at 2.5in Lift


  • Fits all Ford Superduty 2005 -2016 and 2017-2022, All  F250 F350 F450 F550.
  • These brackets are designed to be used with stock castor cams. If you do not have stock castor cams look at OUO part numbers 501212 and 501213.
  • On a 2.5” Lifted truck it will make the castor 5 degrees +/- while it's at the 2.5in of lift.
  • They keep the axle in the stock location.
  • No sway bar mods needed.
  • Least amount of drop we could get and still get the arm in the mounts.
  • You can use these instead of, or with castor 2.5 degree ball joint cams.

Includes 2 brackets and the hardware needed for 1 truck. 

Check out our EZ IN Bumper Spacers to get the room for your tire.

Main Category:
Main Category:
Front Suspension Components
Product Type:
Radius Arm Drops


  • 5
    Good Stuff

    Posted by Bill Edwards on Dec 9th 2021

    Did exactly as advertised and way more hefty than other products out there. With a 2.5in level on a 21 F250 with 7.3L I was at 0.2 castor, after install I am 4.8 degrees. Never installed anything like this before and did it in the driveway, next time I will pay someone but if you're handy its not too bad (about 3 hours). Great product and Dave (I hope that's right) answered all my questions I had over the phone and was great help. Thanks OUO!