2 Pcs front bump stops for 2007-2018 Wrangler JK Made from premium polyurethane foam, stock length is shorter and softer than the other ploy bumpstops, huge improvement once installed O.D 2" x Height 3.2", Direct replacement, Reliable fit, Durable construction Rigorously tested Fits Wrangler JK 07-18 front suspension jounce bumper There is no need to take the front coil spring out. Jack car up from frame so you get full stretch on spring, then slide/wedge new bumpstop into the spring cavity(may need to use crobar to spread spring a bit but it will slide in)