2014-2022 Dodge Ram 2500 Alien Radius Arms
Image of Thuren Fabrication 2014-2022 Dodge Ram 2500 Alien Radius Arms Badge
Image of Thuren Fabrication 2014-2022 Dodge Ram 2500 Alien Radius Arms Diff View
Image of Thuren Fabrication 2014-2022 Dodge Ram 2500 Alien Radius Arms Diff View 2

2014-2022 Dodge Ram 2500 Alien Radius Arms


Regular price $1,600.00

If IN-STOCK, these will still regularly take about a week to package and ship. If noted out of stock, plan on about 4-5 weeks to ship.


  • Easy 3 bolt installation per side
  • Constructed from laser cut 3/16" steel, with 3 layers of added internal gusseting.
  • Turning clearance maintained with 37x12.5 tires on factory +57mm offset wheels with zero rub*
  • Turning clearance maintained with 40x13.5 tires on 00mm offset wheels with zero rub*
  • Uses proven OEM rubber rear pivot bushings
  • Multiple hole mounting positions for limiting-straps if needed
  • Maintains factory OEM alignment and axle placement geometry, so they function great from 0-3.5" of lift

*You will need the Thuren High Clearance Sway Bar, and you must replace/modify/trim your fender and liner/rocker seam, to take full advantage of a larger tire size and new turning radius ability.

    Customer Reviews

    Based on 7 reviews
    Massive ! Your fed ex guy will hate you !

    These things are amazing ! They are beefy and look great. They look so much better than the stock ones. The front in on my 2018 2500 feels solid and no rub from my 37s. Love them !

    Jason McClintock
    Alien Arms

    Packaged really well shipped quickly. Looked great and easily installed on my truck. Made the ride feel a bit more smoother and solid. Overall glad I put them on, a much better looking set up then stock.

    Joseph De Masi
    Perfect suspension if Installed correctly

    Suspension needs to be installed by a trusted suspension modification shop that has experience with thuren. I didnt do that the first time and my track bar joints wore out in about 3 months and my radius arms were installed with the left with the least amount of caster and the right with the most amount of caster. Needed the piece of mind so dropped it off with a reliable shop.to get ripped out, track bar rebuilt and all re-installed. Lets just say a $5000 kit for just a level is absolutely worth it. i run 22x12 arkon truimphs wrapped in 325x50R22 and want to get a set of 37s for my stock wheels that go on for the winters here in New york. Would love to see some preview photos of of stock 18 inch wheels with 37x12.5

    Ean Quiel
    These Arms are Beefy

    So far I love the way these arms work with the 40’s I have on now. Perfect clearance with no rub and much smoother suspension off road.

    Eric Mayers

    These radius arms are freaking gnarly. So beefy. Easy install and now have room for days. 37” tires on OEM 20” wheels, finally. Looks clean, and tucked in. These with the IFP front kit + springs, track bar and sway bar have completely changed the feel and strength of the truck. Ride quality on and off road is night and day better. 10000% worth it.