JKS rear coilover conversion mounting kit for 2018–2021 JL Wrangler provides the rear-side brackets and hardware needed to accept long-travel coilovers, matching the front conversion system. Though product detail is limited here, the kit is intended to work with high-travel aftermarket coilovers to increase rear suspension travel and allow ride-height and valving adjustments consistent with upgraded coilover setups.
JKS Manufacturing 18-21 Jeep Wrangler JL Coilover Conversion Mounting Kit - Rear