412 Series, 12in. Rear Shock Absorbers with Full Covers - Chrome. Fits Dyna 1991-2017. - Progressive Suspension Fuel Injection & Components * Sold Pair

* Sold Pair

Normally with Aluminum Core

Increases throttle response and eases starting

* Intake Manifold Flange # SS106-3516

412 Series, 12in. Rear Shock Absorbers with Full Covers - Chrome. Fits Dyna 1991-2017. - Progressive Suspension Fuel Injection & Components * Sold PairFeatures & Benefits: * 412 Series Shock. * Best value shock on the market today. * Simple, durable design will be an improvement over the Original. * Double wall steel body construction. * Nitrogen charged, multi staged velocity sensitive valving. * Smooth, consistent damping. * Multi position cam style preload adjuster. * Progressively wound Spring. Tech Tips: * If you are purchasing longer or shorter suspension, confirm that changing your Suspension