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Tubular Extended Long Travel Radius Arms 1966-77 Classic Early Ford Bronco Suspension
Stage 3 Tubular Extended Radius Arms 1966-77 Bronco
List Price: $985.00
Our Price: $799.95
You save $185.05!

Looking to improve the ride of your Ford Bronco? Are you wanting it to handle better and get your turning radius back? Need better traction for when you go off-road?

Then check out our proven Long Travel Extended Radius Arm. Designed for rugged off-road use while enhancing drivability. Fabricated out of 2" diameter, heavy wall DOM at a whopping 5/16" thick! For strength and safety we designed a separate cast steel head unit to mount to the C-wedges on the axle with your original C-cap or our new ones sold separately. These arms are 10 3/4” longer than a '66-'79 Bronco arm, moving the pivot point farther back. This vastly improves suspension travel & articulation but it doesn't stop there. These arms also improve handling & control for on road driving.

  • Proven Design since 2001
  • 10 3/4" longer than stock
  • Built-in 4.25º of added caster
  • In stock ready to ship, no lead time, no waiting!
  • Backed by the best customer service in the industry
  • Buy these arms and combine them with Duff Springs, Mounts & Shocks for the nicest riding Bronco.
  • Big Tires? Due the offset built into them that's what these these arms are made for
  • Needing more articulation, more flex? Our extended arms will give you the most of any arm on the market
  • Strongest extended radius arms available
  • Made from 100% brand new American Materials
  • Comes powder coated with all necessary hardware
  • Just say no to janky designs and core charges!


Fabricated from all new materials; no core charges, no cutting or welding to 40-50 year old cast arms. Built in caster means better alignment and handling. A tight to the frame rear mount holds the arm with a high quality 1” bore Teflon lined and lubricated Rod End, keeping it closer to the frame for improved ground clearance and breakover angle. Tons of travel, a tighter turning radius, better ground clearance and improved handling all in one product! Includes arms, head units, rod ends, frame mounts, bushings and all necessary mounting hardware. Bolt on installation, but some welding recommended. Requires at least a 3” suspension lift. C-bushings are sold separately due to vehicle variations and lift height.

Built in lower shock mounts for use with stock shock mounting position or our Stage 2 Hoops and our Long Travel Shocks for 15" of travel. Best results are achieved when these arms are used in conjunction with Duff suspension components. Signature Duff Blue powder coated for durability or upgrade to new Midnight Black Metallic powder coat for $40. Requires reuse of original C-caps (we also sell separately for Solid Axle swaps.) Part #5341.

Includes arms, head units, rod ends, bushings and all necessary mounting hardware. All new parts, no core necessary.

Because the shopping cart cannot calculate shipping on these, we will contact you to authorize with shipping charges AFTER you place your order. Please note these are heavy duty. Even though they ship ground, they come in two boxes totaling 111lbs!

NOTE: Factory sway bars must be removed to use our Extended Travel Radius Arms.

Is your Early Bronco equipped or are you looking to buy long tube headers? Please keep in mind we redesigned our long tube headers to work with our extended radius arms. Check out our Black Painted or Ceramic Coated headers here. If you are running another manufactures long tube headers we cannot guarantee fitment. If you are running factory manifolds or shortie headers there will be no fitment issues.

Want to know what's involved for installation?






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Early Ford Bronco T-Rex Radius Arms Replacement Stock Length Stage 2 Duff James Suspension
T-Rex Stock Length Radius Arms, 1966-79 Bronco, 1967-79 F150 4WD
List Price: $830.00
Our Price: $749.95
You save $80.05!

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.





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Tubular Extended Long Travel Radius Arms, 1978-79 Fullsize Ford Big Bronco & 1967-79 Trucks F150
Tubular Extended Long Travel Radius Arms, 1978-79 Bronco, 1967-79 Trucks, SAS B2/Ranger/Ex
List Price: $1,020.00
Our Price: $834.95
You save $185.05!

Looking for the next upgrade for your project vehicle? Anything from a '67 Ford Truck to a '97 Ford Explorer and all in between these arms are for you. 100% bolt-in design, guaranteed to out flex your mom's land rover and make it ride smoother!

We originally designed this long arm for the '78-'79 Big Bronco and quickly realized all the rest of you wanted a piece of the action. Now this kit can mount up to any C-Channel frame, and is a popular upgrade for '80-'96 Full Size Broncos, all Bronco II's, Rangers & Explorers. Don't have a solid front axle? No problem. Out source or spec your favorite front axle and this kit will get you started on your solid axle swap. Click here for the parts list. We've also had customers successfully use this kit on Econoline Vans, Jeeps, Blazers, Scouts, Hummers, and more!

Our proven Long Travel Extended Radius Arm is Designed for rugged off-road use while enhancing drivability. Fabricated out of 2" diameter, heavy wall DOM at a whopping 5/16" thick! For strength and safety we designed a separate cast steel head unit to mount to the C-wedges on the axle with your original C-cap or our new ones sold separately. These arms are 10 3/4” longer than a '66-'79 Bronco arm, moving the pivot point farther back. This vastly improves suspension travel & articulation but it doesn't stop there. These arms also improve handling & control for on road driving.

  • Proven Design since 2001
  • Bolt-in C-Channel Frame Mounts
  • 10 3/4" longer than stock
  • Built-in 4.25º of added caster
  • In stock ready to ship, no lead time, no waiting!
  • Backed by the best customer service in the industry
  • Big Tires? Due the offset built into them that's what these these arms are made for
  • Needing more articulation, more flex? Our extended arms will give you the most of any arm on the market
  • Strongest extended radius arms available
  • Made from 100% brand new American Materials
  • Comes powder coated with all necessary hardware
  • Just say no to janky designs and core charges!


Fabricated from all new materials; no core charges, no cutting or welding to 40-50 year old cast arms. Built in caster means better alignment and handling. A tight to the frame rear mount holds the arm with a high quality 1” bore Teflon lined and lubricated Rod End, keeping it closer to the frame for improved ground clearance and breakover angle. Tons of travel, a tighter turning radius, better ground clearance and improved handling all in one product! Includes arms, head units, rod ends, frame mounts, bushings and all necessary mounting hardware. Requires at least a 4” suspension lift for '78-'96 Ford Broncos. C-bushings are sold separately due to vehicle variations and lift height.

This kit includes arms, cross member brackets, specially designed frame brackets with a backside reinforcement and riser brackets for the brake lines. The arms are the same proven design that we've been selling for years! Combine with our Cast C-Wedges, C-Caps and Spacers to swap in a new Dana 44 or Dana 60!

Note that a High Pinion 44 or 60 needs about 8° caster, 5-6" lift on this axle will utilize the 4°C-Bushings #6004. Any more lift then that use 7°Bushings #6007. The caster numbers can be adjusted on all axles depending on what angle the C-wedges are welded onto the axle.

Because the shopping cart cannot calculate shipping properly on these, we will contact you to authorize with shipping charges after you place your order. Please note these are heavy duty, they come in two packages totaling 121lbs!



Want to know what's involved for installation? Download instructions here
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C Bushings 7° Lift 1966-77 Classic Early Ford Bronco Dana 30 44
7° C-Bushings, Set of 4, 1966-79 Bronco, F150 and Solid Axle Swaps
Our Price: $39.95

With positive caster adjustment built in, our C bushings will help recover the steering control lost from lift kits and wear and tear. High quality Black polyurethane bushings. Fit 1966-79 Broncos, F100 & F150s The only way to be certain which ones you need is with a front end alignment but our experience has lead us to the following general recommendations:

1966-77 Bronco with stock arms:

#6002 2° C Bushings, stock height
#6004 4° C Bushings, 1 - 2 1/2” lift
#6007 7° C Bushings, 3”+ lift

1966-77 Bronco with our Long Travel or T-rex Radius Arms with 4.25° caster built in to the arms:
3.5” lift: #6004 4° C Bushings
5.5" lift: #6007 7° C Bushings

78-79 Bronco/F150 with our #5351 Long Travel Radius Arms or T-rex arms with 4.25° built in:
2-4” lift: #6002 2°C Bushings
5-6” lift: #6004 4°C Bushings
6”+ lift: #6007 7° C Bushings

80-96 Bronco SAS:
Same as 78-79 Bronco but they will vary depending on what degree the C-Wedges are welded onto the housing.

Bronco II & 83-97 Ranger Dana 44 SAS with our Long Travel or T-rex Radius Arms:
3-4” lift: #6004 4°C Bushings
5”+ lift: #6007 7° C Bushings


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C- Bushings 2° Stock Height Dana 30 Dana 44 1966-77 Early Classic Ford Bronco
2° C-Bushing Kit, Set of 4, 1966-79 Bronco, F150 and Solid Axle Swaps
Our Price: $39.95

With positive caster adjustment built in, our C bushings will help recover the steering control lost from lift kits and wear and tear. High quality Black polyurethane bushings. Fit 66-79 Broncos, F100 & F150s The best way to determine which ones you need is with a front end alignment but our experience has lead us to the following general applications:

1966-77 Bronco with stock arms:

#6002 2° C Bushings, stock height
#6004 4° C Bushings, 1 - 2 1/2” lift
#6007 7° C Bushings, 3”+ lift

1966-77 Bronco with our Long Travel Radius Arms with 4.25° caster built in to the arms:
3.5” lift: #6004 4° C Bushings
5.5" lift: #6007 7° C Bushings

78-79 Bronco/F150 with our #5351 Long Travel Radius Arms with 4.25° built in:
2-4” lift: #6002 2°C Bushings
5-6” lift: #6004 4°C Bushings
6”+ lift: #6007 7° C Bushings

80-96 Bronco SAS:
Same as 78-79 Bronco but they will vary depending on what degree the C-Wedges are welded onto the housing.

Bronco II & 83-97 Ranger Dana 44 SAS with our Long Travel Radius Arms:
3-4” lift: #6004 4°C Bushings
5”+ lift: #6007 7° C Bushings


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C- Bushings 4° 1"-2 1/2" Lift (4) Dana 30 Dana 44 1966-77 Classic Early Ford Bronco
4° C-Bushings, Set of 4, 1966-79 Bronco, F150 and Solid Axle Swaps
Our Price: $39.95

With 4° of positive caster adjustment built in, our C bushings will help recover the steering control lost from lift kits and wear and tear. High quality Black polyurethane bushings. Fit 66-79 Broncos, F100 & F150s The best way to determine which ones you need is with a front end alignment but our experience has lead us to the following general applications:

1966-77 Bronco with stock arms:

#6002 2° C Bushings, stock height
#6004 4° C Bushings, 1 - 2 1/2” lift
#6007 7° C Bushings, 3”+ lift

1966-77 Bronco with our Long Travel Radius Arms with 4.25° caster built in to the arms:
3.5” lift: #6004 4° C Bushings
5.5" lift: #6007 7° C Bushings

78-79 Bronco/F150 with our #5351 Long Travel Radius Arms with 4.25° built in:
2-4” lift: #6002 2°C Bushings
5-6” lift: #6004 4°C Bushings
6”+ lift: #6007 7° C Bushings

80-96 Bronco SAS:
Same as 78-79 Bronco but they will vary depending on what degree the C-Wedges are welded onto the housing.

Bronco II & 83-97 Ranger Dana 44 SAS with our Long Travel Radius Arms:
3-4” lift: #6004 4°C Bushings
5”+ lift: #6007 7° C Bushings


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Heavy Duty Lower Coil Spring Retainers, 1966-77 Early Classic Ford Fullsize Big Bronco, 1978-79 Bronco
FREE SHIPPING- HD Lower Coil Spring Retainers, 1966-77 Early Classic Bronco, Pair
Our Price: $74.95

FREE US Shipping!

Had a coil pop out under maximum flex? We did! So WE designed the heavy duty replacements to securely hold your coils in place.This allows full flex (of even the last wrap!) without fear of your coil popping loose! Our simple, but effective, one piece design replaces both of the OE pieces. It sits flat on top of the radius arm or our 4-Link truss, also reducing coil bowing. Combine with our axle wedges for axle conversions. Stitch welded and laser cut for drainage. Zinc plated for rust resistance. Fits EB & 78-79 (5 1/2” diameter) Coil springs. Our passenger side retainer has been offset for full coil engagement, we've marked on the retainer plate so you know exactly where they belong when installed. These will insure a long lasting product with optimal coil engagement compared at full droop to others on the market.

These will work for our t-rex arms, extended radius arms, or the stock radius arm.

Want to know what's involved for installation? Download instructions here
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1983-97 4WD 4x4 Standard Cab Ford Ranger 5-6" Stage 3 Suspension System Lift Kit Radius Arms Leaf Springs
83-97 4WD Std Cab Ranger 5-6" Stage 3 Suspension
Our Price: $2,295.00

Here’s the deal. We worked on our 5 1/2”-6” lifts for several years... but we hadn’t released them because we were unhappy using radius arm drop brackets. So, here they are — available only with our extended radius arms. We feel this is the BEST way to lift a TTB this much for the sake of safety, strength, handling and ground clearance. This means the lifts include: •5-6” Progressive Rate Coil Springs* •New Coil Tower Dual Shock mounts •Rod Ended Extended Radius Arms •HD Tranny Crossmember •Extended Stainless Brake lines •Drop pitman arm (fits PS only) •Axle pivot drop brackets •4 front shocks, 2 rear shocks, 6 shock boots •Urethane coil pads, leveling spacer •U-bolt kit •Leaf Blocks •Complete Replacement Leaf Spring Packs •Spring Eye Bushings •Axle Pivot Bushings

We will contact you with shipping rates.
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Ford Bronco II 5-6" Stage 3 Suspension System Lift Kit Radius Arms Leaf Springs
Bronco II 5-6" Stage 3 Suspension Lift
Our Price: $2,395.00

Here’s the deal. We’ve been working on our 5 1/2”-6” lifts for several years... but we hadn’t released them because we were unhappy using radius arm drop brackets. So, here they are finally— available only with our extended radius arms. We feel this is the BEST way to lift a TTB this much for the sake of safety, strength, handling and ground clearance. This means the lifts include: •5-6” Progressive Rate Coil Springs* •New Coil Tower Dual Shock mounts •Rod Ended Extended Radius Arms •HD Tranny Crossmember •Extended Stainless Brake lines •Drop pitman arm (fits PS only) •Axle pivot drop brackets •4 front shocks, 2 rear shocks, 6 shock boots •Urethane coil pads, leveling spacer •Axle Pivot Bushings •U-bolt kit •Complete Replacement Leaf Spring Packs •Spring Eye Bushings

We will contact you with shipping rates.
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1983-97 4WD Ford Ranger Supercab Xcab 5-6" Stage 3 Suspension system Lift Kit Radius Arms Leaf Springs
1983-97 4WD Ranger Xcab 5-6" Stage 3 Suspension
Our Price: $2,395.00

Here’s the deal. We’ve been working on our 5 1/2”-6” lifts for several years... but we hadn’t released them because we were unhappy using radius arm drop brackets. So, here they are finally— available only with our extended radius arms. We feel this is the BEST way to lift a TTB this much for the sake of safety, strength, handling and ground clearance. This means the lifts include: •5-6” Progressive Rate Coil Springs* •New Coil Tower Dual Shock mounts •Rod Ended Extended Radius Arms •HD Tranny Crossmember •Extended Stainless Brake lines •Drop pitman arm (fits PS only) •Axle pivot drop brackets •4 front shocks, 2 rear shocks, 6 shock boots •Urethane coil pads, leveling spacer •U-bolt kit •Leaf Blocks, if applicable •Complete Replacement Leaf Spring Packs •Spring Eye Bushings •Axle Pivot Bushings

We will contact you with shipping rates.
more info