Description

Brand new for 2023, James Duff’s exclusively designed 1.5″ Leaf spring! The first leaf spring of its kind for an Early Bronco that actually reduces pinion angle eliminating the need for pinion correction with Most EB’s. This Spring also has a great spring rate so it works well with most Early Broncos w/o the need for lift blocks or adding extra weight to the rear end of the Bronco. (See Disclaimer above). For those of you really loading down the rear end and/or wanting to tow, we offer an XL add-on spring (Coming Soon!)

Looking for a high-quality All-American-made leaf spring for your Early bronco? This progressive rate 11 leaf spring has been #1 for over 20 years now with superior strength, maximum articulation, and ride quality, and Duff’s is proud to offer it exclusively with the #1 suspension systems on the market.

Want coil springs to match? Purchase those here.

Are you wanting leaf springs for a higher lift height? Check out our 2.5″ Lift, 3.5″ Lift or 5.5″ Lift leaf springs.

These premium springs come with standard features like Teflon wear pads, tapered ends, a built-in safety double wrap on the mainspring, and catch stops to prevent the spring from over-articulating with your LUBR or Huck Performance Package.  If you need shackle bushings and sleeves as well, those are sold separately here.

You can also add on great upgrades when purchasing these springs like Leaf spring and shackle mounting hardware, Shackle bushings with sleeves, Duff HD spring plates, U bolts or HD U- bolts (both that come standard with new HD hardware), HD shackles, pinion shims, lift blocks or new Duff HD weld on spring perches offered in factory and 1″ built-in lift.

For some of you, there will be some combination of parts that accessorize your Bronco in between a soft, medium, heavy, and extra heavy-duty setup. This is why we offer an XL add-on spring, lifted spring perches, 1/2″ and 1″ lift blocks as well as pinion shims for driveshaft angle corrections to get your ride height and driveability spot on. Our new 1/2″ lift block will also offer the option to move the axle back for that perfect amount of tire-to-fender clearance for the uncut lifted 66-77 Broncos.

Installation Note: The Double spring Wrap is to be installed towards the front of the Bronco.