The rear panhard rod controls lateral movement of the axle housing. When you setting your ride height, the fixed length of the OE track-bar will not fit height adjustments. This will results unnecessary stress on suspension and alignment problems. Hardrace adjustable rear track-bar allowing your suspension parts to work accuracy and set the alignment correctly and easily. . More direct energy transfer and feel . Constructed of high-strength steel alloys that offer durability . Offer you adjustability for setting up the suspension  Note: Harden Rubber Equipped 1 PCS/SET0 ~ 4 INCH LIFT   Fits: Dodge RAM 1500 2009-2018 Dodge RAM 1500 2019- Jeep Gladiator JT 2019-present