-11%
Click to zoom in
Restore Radius Arm Geometry on Classic Ford 4x4 Pickups
The Skyjacker RAB27 is a radius arm bracket engineered for 1965 to 1976 Ford F-100 4 wheel drive trucks, with additional fitment for select 1977 to 1979 F-150 and Bronco models sharing the same front end. Lifting a radius arm equipped truck changes the arm's operating angle, and RAB27 repositions the frame side mounting point to correct that geometry, reducing binding and improving ride quality after a lift. This bracket bolts to the factory frame location without cutting or welding, making it a straightforward addition to a radius arm lift build.
Key Features
- Corrects radius arm operating angle after a lift
- Reduces binding and improves ride quality on lifted trucks
- Backed by Skyjacker Limited Lifetime Warranty
- Direct bolt on frame side bracket, no cutting or welding required
- Sold individually
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1978-1979 | Ford | Bronco | Custom |
| 1978 | Ford | Bronco | Northland |
| 1978-1979 | Ford | Bronco | Ranger XLT |
| 1970-1974 | Ford | F-100 | Base |
| 1975-1976 | Ford | F-100 | Custom |
| 1975-1976 | Ford | F-100 | Northland |
| 1975-1976 | Ford | F-100 | Ranger |
| 1976 | Ford | F-100 | Base |
| 1977-1978 | Ford | F-150 | Base |
| 1977-1979 | Ford | F-150 | Custom |
| 1977-1978 | Ford | F-150 | Northland |
| 1977-1979 | Ford | F-150 | Ranger |
| 1977-1979 | Ford | F-150 | Ranger XLT |
| 1977 | Ford | F-150 | XLT |
| 1978-1979 | Ford | F-150 | Ranger Lariat |
Specifications
| Detail | Value |
|---|---|
| Part Number | RAB27 |
| Brand | Skyjacker |
| Category | Control Arms |
| Warranty | Limited Lifetime Warranty |
| UPC | Not Published |
What's Included
- RAB27 radius arm bracket
- Mounting hardware
- Installation instructions
About Skyjacker
Skyjacker Suspensions has designed and manufactured off road suspension systems in West Monroe, Louisiana since 1976. Every lift kit, spring, shock, and bracket is engineered and tested in house to handle real world towing, hauling, and trail use, backed by a Limited Lifetime Warranty on most components. Skyjacker parts are trusted by truck and Jeep owners who want a controlled ride at any lift height.
Related Parts
Frequently Asked Questions
What is the RAB27?
The Skyjacker RAB27 is a radius arm bracket for 1965 to 1976 Ford F-100 4 wheel drive trucks, with additional fitment for select 1977 to 1979 F-150 and Bronco models. It corrects radius arm operating angle after a suspension lift.
Will this part fit my vehicle without modification?
The RAB27 is designed as a direct bolt on component for its listed vehicle applications and does not require cutting, welding, or drilling for installation.
Does this part include mounting hardware?
Yes, the RAB27 ships with the mounting hardware needed for a complete installation, along with instructions.
Is professional installation required?
Most installers or experienced DIY mechanics with basic hand tools and a vehicle lift or jack stands can complete installation, though professional installation is recommended if you are unfamiliar with suspension work.
What warranty does Skyjacker provide on this part?
This part is backed by Skyjacker's Limited Lifetime Warranty against manufacturing defects for as long as you own the vehicle it was installed on.
Will installing this part affect my vehicle alignment?
Yes, any suspension component that changes ride height or geometry should be followed by a front end alignment to ensure proper tire wear and handling.
Can I install this part myself?
Installation is possible in a home garage with a vehicle lift or jack stands, basic hand tools, and a torque wrench, following the included instructions.
Does this part work with factory tires and wheels?
Yes, this part is compatible with factory tire and wheel sizes, and it also creates additional clearance if you plan to upgrade to larger tires.
How do I confirm this part matches my specific trim level?
Check the fitment table on this page against your vehicle's year, make, model, and trim, or provide your VIN to confirm compatibility before ordering.
Install Instructions
- Support the front of the truck on a lift or jack stands
- Disconnect the radius arm from the factory frame mounting point
- Remove the factory bracket if applicable
- Install the RAB27 bracket at the relocated position using the included hardware
- Reconnect the radius arm to the new bracket location
- Torque all hardware to Skyjacker specification
- Lower the vehicle and check alignment before road testing
Prop 65 Warning
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Alignment Components
Alignment components at Black Ops Auto Works include camber kits, caster kits, adjustable control arms, toe links, and shock mounts and camber plates built to correct suspension geometry and reduce uneven tire wear. Shop billet control arms, cam bolt kits, and adjustable arms from SPC Performance, AAD, Fox, and more. Black Ops Auto Works carries 1,367 alignment component SKUs across street, off-road, and towing platforms including Jeep, Dodge, GM trucks, Honda and Acura, and Toyota and Lexus. What This Collection Covers This collection combines five related alignment and suspension geometry categories: alignment kits, caster kits, control arms, camber kits, and shock mounts and camber plates. Product Types in This Collection Shoppers will find cam bolt and cam bracket kits for camber and caster correction, adjustable billet upper and lower control arms, rear toe links, and strut mounts. Camber and Caster Correction Camber kits and caster kits use cam bolts or adjustable bushing...
View Alignment Components Products
Control Arms
Control arms for lifted trucks, SRT and Hellcat platforms, and off-road builds are stocked at Black Ops Auto Works. Shop tubular steel upper control arms, billet adjustable control arms, rear toe links, camber arm kits, and vehicle-specific control arm sets for Jeep Grand Cherokee and Trackhawk, Dodge Durango, Charger, Challenger, 300, and Magnum, Toyota 4Runner and FJ Cruiser, Lexus GX460 and GX470, Ford Mustang, and GM 1500 trucks. Every product is filterable by year, make, model, trim, and lift height so the correct control arm ships the first time. Black Ops Auto Works carries 789 control arm SKUs across upper, lower, adjustable, and toe link categories. What This Collection Covers Control arms connect the wheel hub and knuckle assembly to the vehicle frame and control wheel travel through compression and droop. Worn OEM control arms with loose ball joints or deteriorated bushings cause vague steering, uneven tire wear, and handling inconsistency. This collection covers arm ...
View Control Arms Products
Skyjacker
Skyjacker suspension parts are stocked at Black Ops Auto Works for Jeep, Ford, Chevrolet, GMC, RAM, and Toyota trucks and 4x4 vehicles. Shop lift kits, leveling kits, dual rate coil springs, Black Max, Nitro 8000, Hydro 7000, and ADX M2.0 shocks, steering stabilizers, upper control arms, and suspension hardware. Every product is filterable by year, make, model, trim, and drivetrain so the correct Skyjacker part ships the first time. Black Ops Auto Works carries 1,596 Skyjacker SKUs across lift, leveling, and off-road suspension categories. What This Collection Covers Skyjacker builds off-road suspension systems for trucks and Jeeps that need more ground clearance, better ride control, improved steering stability, and stronger trail capability. Skyjacker is best known for lift kits, leveling kits, and long travel coil springs. Product Categories Lift kits and component boxes, leveling kits and strut spacers, dual rate and long travel coil springs, Black Max, Nitro 8000, Hydro 700...
View Skyjacker Products
Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products