RockJock’s optional 4″ rear coil springs available for use in our JK 2 or 4-door Johnny Joint suspension systems are available for the LCG crowd, are dual-rate and provide exceptional ride quality and height control. Finish is gloss black powder coat. Kit Includes:- One (1) pair of rear coil springs Dual rate Provide comfortable ride and excellent offroad performance Gloss black powder coat finish Combined rate of 88 lbs Free length of 18.55″ Fits:Jeep Wrangler JK 2 Door (2007-2018)Jeep Wrangler JK 4 Door Unlimited (2007-2018)