2003-2009 Dodge Ram Alien Long Arms
Image of Thuren Fabrication 2003-2009 Dodge Ram Alien Long Arms Upper Arms
2003-2009 Dodge Ram Alien Long Arms

2003-2009 Dodge Ram Alien Long Arms


Regular price $2,400.00

While these may be noted out of stock, we generally have everything in-house ready to go, just waiting on final assembly and packaging. Most orders will ship within a week or two, after your order is placed. Thank you!

The ultimate option for maximum performance! Our long arms allow the axle to move in a more vertical motion, greatly improving ride quality compared to the factory OEM short-arm design.


  • Fits and functions with no lift, up to 6" of suspension lift.


  • Optimum suspension cycle path, to reduce roll-steer while keeping a bit of anti-dive, and easing driveline vibration.
  • Must be welded to frame, and OEM control arm mounts cut off/removed.
  • Uses Thuren machined self-centering 17-4 hardened stainless orbital joint pivots with .PTMEG Poly joints. EASY and cheap to rebuild if/when needed!
  • 0.00mm Offset wheels provide full turning radius with Toyo 37x13.5 MT tires. +18mm offset wheels will rub the paint a bit with 37x13.5 tire, but will be tolerable.
  • Arms come powder-coated and assembled, while the brackets are raw steel for welding.

Product Installation Instructions

Customer Reviews

Based on 3 reviews
Carl Case
3rd gen Alien long arms

Went from short arms to long arms. The ride is night and day better. The corrected geometry makes the truck point and shoot on and off road.

Brad tietjens
Worth the money

After talking with the folks at Thuren, I pulled the trigger on a set of long arms. They arrived faster then i expected. After getting them installed I drove the truck home which was about 110 miles and I would say I definitely feel a difference between the drive to drop off vs pickup on the so cal streets and freeways.

Truck feels smoother going over small sharp bumps rolling bumps, potholes etc. and more stable going through streets and on the freeway. I also noticed the truck doesn't dive nearly as much under braking. Just need to upgrade the shocks to complete the package.

Truck specs at time of review
04 ram 2500 5.9
3" Thuren springs
Thuren Track bar
Thuren sway bar
Thuren Fox 2.0
Thuren Boogie bumps

Lowell Neshem
Alien Arms!

Don’s Alien Arms are very well designed and the craftsmanship is absolutely world class. The install is more complex than installing short arms but it is not too bad as long as you have a competent welder complete the welding. Huge improvement in ride and overall feel of the truck! I installed these on a 3” lift and the small sharp edge bumps that use make the whole truck shudder are now absorbed and go almost unnoticed. Roll steer is greatly reduced as well. Highly recommend!