Progressive Rate Coil Springs, 1966-77 Bronco, Pair

$234.95

Progressive Rate Coil Springs for 1966-77 Bronco. Dual-stage design for optimal on and off-road handling. Durable finish.

Description

– Developed based on extensive experience in Early Bronco suspensions
– Tested by independent Bronco owners for superior ride quality
– Designed for unique owner requirements with a dual-stage progressive rate
– Remarkable suspension travel for longevity and reliability
– Progressive coil rate allows for comfort and stability during varied driving conditions
– Softer upper wraps for street comfort and firmer lower rates for effective bump handling
– Enhances handling, reduces body lean, and maintains vehicle stability
– Available in blue or black powder-coated finishes for added durability
– Works seamlessly with James Duff 4-link setups
– Ideal for daily driving and recreational use, ensuring comfort and reliability

Features & Benefits:

  • Extensive ride quality testing by owners
  • Dual-stage progressive rate for various driving styles
  • Increased suspension travel for durability
  • Comfortable street ride with effective bump absorption
  • Enhanced corner handling with reduced body lean
  • Powder-coated finishes for long-lasting performance

Technical Specs:

  • Compatibility: 1966-77 Bronco
  • Finish: Blue or black powder-coated
  • Design: Dual-stage progressive rate

Additional information

Weight 34 lbs
Dimensions 21 × 10 × 5 in
Choose Color

Duff Signature Blue, Black

Choose Lift Height

Stock Replacement / Duff 4 Link, 1.5" Lift Coil Springs, 2.5" Lift Coil Springs, 3.5" Lift Coil Springs, 5.5" Lift Coil Springs

Reviews

  1. Todd Zuercher

    I received my 2.5″ progressive coil springs yesterday – quick shipping after placing the order online. Tonight I calculated the spring rate on them and I think they’re just about what I’m looking for. It’ll be awhile until I get them installed but I’m looking forward to giving them a workout.

  2. Mark Vogel

    Great Experience with these guys

  3. James Noles

    Thank you for supplying the best parts available to make my 74 Bronco Duff Tuff! It’s the only place I shop for all my bronco needs and wants!

  4. Shawn Malcom

    As always great price best customer service and quality parts

  5. Austin Cory

    I’m doing a budget build and these springs are perfect. Most affordable progressive rate springs I could find.

  6. Richard Snyder

    4 Link Springs! great communication through the whole process. Great Product as always.

  7. Sean Bell

    Quick and easy order and a top rate product! The Bronco rides like a different truck now!

  8. Kevin Smith

  9. Corbin

    Flex real well, fit well with doing a bronco 44 sas swap on my truck.

  10. Jerry Richards (verified owner)

    Ordered online got them a couple of days later. Bronco rides alot better now

  11. Jacob Waring (verified owner)

    I just recently bought the 5.5 inch for my SAS Tahoe. They fit perfectly and the ride height is just how I wanted it. There is a ton of flex and the ride quality is superb even without a front sway bar. Would recommend to anyone planning to SAS using a 66-77 bronco front end.

  12. Ron (verified owner)

    much smoother ride than my old Rancho Lift

  13. Bill (verified owner)

    Purchased 3 1/2” front springs. Excellent quality, excellent ride improvement over the 90’s lift that was on the truck. Highly recommend.

  14. Johnathan McCall (verified owner)

    Took off some other brand 5.5” springs and put on 3.5” Duffs Springs. Love the ride these give. Not been off-road with them but on the road it’s a good smooth ride and handles great.

  15. tony-6356 (verified owner)

    The springs gave my front end a whole new look and a better feel on & off the road!
    Big time upgrade!

  16. Eric T (verified owner)

    I last replaced my front coils with Duff springs some 37 years ago on my 70 Bronco. And I bet I would not have needed to replace them if not for a higher desired lift. So I knew there was only one brand I wanted to buy. I think progressive is the way to go (rather than linear) and these were consistent such that they fit just the same on both left and right. Great lift and ride.

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