Duster Rear shocks too short w/XHD Leaf

You need longer shocks such as Mopar Performance P4529514. With the shocks you have there will not be enough travel for then leaf springs to work and make the car "rise" when you hit the throttle. I used a set of KYB's for an early dodge pickup which are 2" longer. Just make sure the mounting eyelets are the same size.