Description
Introducing the rear sway bar kit from James Duff, engineered as the first fully bolt-on solution for the 1966-77 Bronco with our Early Bronco 9” 4 Link setup. This innovative kit is expertly designed to accommodate both stock width and full-width axles, making it a versatile choice for Bronco enthusiasts.
After a decade of successfully providing our 9″ EB 4 Link kit, we proudly endorse this sway bar for safe on-road performance. Its unique adjustable features allow for seamless transitions between street driving and rock crawling, ensuring an optimal driving experience. Crafted with durability in mind, the kit comes 100% powder coated and installs effortlessly with a straightforward bolting process.
Please note, this sway bar is meant for use with our current 9” 4 Link truss (redesigned in December 2012). Previous versions require modifications to the truss bracket and outboard shock mount for compatibility.
Features & Benefits:
- 100% bolt-in design with James Duff 9-inch 4 Link system
- Compatible as a rear universal sway bar kit for Early Bronco applications
- Engineered specifically for Early Bronco rear applications
- Incompatible with leaf springs on Early Bronco models
- Can be used with James Duff 1 ton 4 link, though welding and modifications are necessary
Technical Specs:
- Compatible Models: 1966-77 Ford Bronco
- Sway Bar Type: Rear
- Finish: Powder coated
- Installation: Bolt-in design
Instruction sheet: HERE









Hinmaton Hisler (verified owner) –
The fact that Duff is offering a Anti-Rock based sway bar designed to fit our Early Broncos is enough to win customer loyalty and appreciation all day. It fits, works, and is simple to install – full stop –
I’m in the process of figuring out how to install one on the front of my fully linked ’74, which is rad because I don’t have to design an Anti-Rock to fit my Bronco, I just have to figure out how to package what’s already designed. Game Changer! Thank you Duff Tuff design team!