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T-Rex Stock Length Radius Arms, 1966-79 Bronco, 1967-79 F150 4WD

Early Ford Bronco T-Rex Radius Arms Replacement Stock Length Stage 2 Duff James Suspension

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List Price: $830.00
Our Price: $749.95
You save $80.05!

Availability:: In stock, ready to ship
Product Code: 5355




Add Optional Parts

#6100 Black Strut Bushings [Add $19.95]
#6100 Blue Strut Bushings [Add $19.95]

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#5100 Upper Coil Retainer Tabs [Add $12.95]

Description Extended Information
Our new T-Rex radius arms are a stock length version of our heavy duty long arms with a built in offset for additional tire clearance but unlike the extended arms, these are a direct bolt in to your existing frame brackets. They use stock style polyurethane bushings, no welding of new brackets is necessary. Yes, 100% bolt on! Why would we do such a thing? Many Bronco owners want an arm that can clear a larger tire when turning without having to grind, drill or weld on their frame. These arms work for stock height Broncos and up to 3.5 of suspension lift. The arms come with 4.25 of caster built in. Shock mounting is different than our extended arms, these utilize a single shock mount located on top of the arm for a tighter turning radius arm, similar to a stock arm. Come powder coated in Signature Duff Blue or upgrade to new Midnight Black Metallic. Includes all mounting hardware required including hardware in kit #HC5341.

  • 100% Bolt-in, No Welding Required
  • Improves ride and handling
  • Run up to 37" Tire with out rubbing radius arms
  • Eliminate unsafe and rusty stock radius arms
  • Best radius arm on the market for street and trail use
  • Already comes powder coated black or blue, all hardware included

NOTE: Factory sway bars from the Early Bronco, Big Bronco (1978-79), and F-Series trucks must be removed to use our T-Rex Radius Arms.

T-Rex UnBox
Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 5 Write a review.

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  2 of 2 people found the following review helpful:
5 of 5 Trex arms October 23, 2019
Reviewer: Michael Sickels from Huntington Beach, CA United States  
I was finally able to put tires on my rig after a 4 year build. I went with 35” tires thinking I would have enough clearance.  First turn and my tires were rubbing on my stock radius arms.   After a little research, talking with Tom Hyde and watching a great video with Jonathan Melton and Michael Duff I ordered my new arms.  They bolted on without any modifications or issues.  They look awesome.   Way better looking than the weak stock arms and now I can turn without problems!!  Thanks!! Not only do the look better but when I get it out on the trail I am sure my rig will perform better.

 Great product and a great company!!

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  1 of 1 people found the following review helpful:
5 of 5 The IRON CASKET October 1, 2019
Reviewer: The IRON CASKET, Vigilante Racing from East Helena , MT United States  
These radius arms are one of the best upgrades I made!! They maintain stock locations but allow more travel and unmatched durability! I have several duff tuff parts on my racer and could not be happier with the performance. Vigilante Racing’s latest accomplishment was a 2nd place finish at the Wild West 100 in Columbus, Mt. 9/21/19. Thanks to James Duff we had another successful season. I would certainly purchase the Trex arms again!!!

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  3 of 3 people found the following review helpful:
5 of 5 Best September 9, 2019
Reviewer: Tom Hyde CEO Lick Creek Restorations, LLC from Ceres, VA United States  
These arms are exactly what every factory 3 link Ford needs, specially if you add any lift or larger tires. We worked with Duff to develop this, ok I begged them to make a set out of their long arms for a build I was doing and they did. Little did we know all of the benefits they would yield. These are one of those items you just scratch your head and wonder why it took so long to come to market because you wouldn't think they had much to offer besides a little more tire clearance on tight turns. Be prepared to have your mind blown when you put these little gems on. Be prepared to bask in the same amazement everyone else now gets to enjoy when they make the switch. They improve ride quality by reducing a pivot bind, this allows the springs and shocks to fully work as they were intended freeing up the ride, smoothing out the road and giving you handling characteristics like never before! These are now a standard part on all of our builds.

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  2 of 2 people found the following review helpful:
5 of 5 AMAZING PRODUCT! August 8, 2019
Reviewer: Jonathan Melton from Franklin, TN United States  
The T-Rex arms really are and amazing product. Better street driving, more articulation off road, no welding, not cutting off the old radius arm hangars, these are awesome!

If you can install C-Bushings, you can install these. They fit right where the stock Radius arms go. I wouldn't say radius arms are "easy" to install, but they are worth it to install.

Keep in mind, these won't "solve" a bad driving Bronco, but they will definitely smooth out a stiff ride.

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  1 of 1 people found the following review helpful:
5 of 5 Excellent customer service and brand October 21, 2017
Reviewer: Nelly K. from Edmonds , WA United States  
I was extremely happy with the customer service from the Duff team. Love the thought on the brand and packaging that goes into the product. I’m a fan.


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