A Body Leaf Spring Slider

The BAC A body leaf spring slider replaces the weak offset shackles used in common offset leaf spring relocation kits. It bolts on with the original upper leaf spring bushing bracket hardware and needs no modifications to the body. It also keeps the same ride height as the shackles it replaces.

Why an A body leaf spring slider beats an offset shackle

Moving the rear springs inboard is one of the best ways to fit wider rear tires under a Dart, Duster, Demon, Valiant or Barracuda. On these cars the leaf springs do more than carry weight: they also locate the rear axle. However, the weak link in most offset relocation kits is the offset shackle. It hangs off the side of the spring eye, so the back of the spring can wander sideways under cornering load. In contrast, our slider locates the rear of the spring firmly while it travels smoothly on Delrin bushings and sealed bearings. As a result, the axle stays where it belongs and the car feels planted.

A body leaf spring slider features

• Designed to replace the offset shackles on A body offset spring hanger kits
• Bolts on using the original upper leaf spring bushing bracket hardware
• No modifications to the body
• Superior lateral stability
• Allows larger tires thanks to reduced spring deflection
• Delrin bushings for long life
• Smooth, progressive spring movement
• Quiet operation from tight tolerances and high-load sealed bearings
• Maintains the same ride height as shackles

Designed and tested by Bergman Auto Craft

Peter Bergman has spent more than 30 years building classic Mopars. In addition, our parts are proven on real street and track cars, including the owner’s own A-body Dart with more than 200,000 miles on it. Starting from scratch instead of upgrading an existing offset kit? Then our complete A Body Leaf Spring Relocation Kit includes a bolt-on Delrin slider, front hangers and spring perches, with two ride-height positions.

Finish the rear of your A-body

Pair the slider with Bilstein rear shocks and a rear sway bar, and stiffen the unibody with a Level 3 chassis stiffening kit. Also, see every A-body steering, suspension and chassis part we offer. Finally, bring the front end up to the same standard with our Mopar front suspension kit.

Not sure the A body leaf spring slider fits your relocation kit? Call or text Peter at (516) 384-6438. You will be talking with the person who designs and tests these parts.