Wrangler JL 2018-2026 Jeep 4WD - Rear Adjustable Bump Stop Kit by JKS

JKS1149 Adjustable Rear Bump Stop Extension Kit for Jeep Wrangler JL is engineered to precisely control rear suspension up-travel on lifted applications. Designed to work with most 2–6" lift kits, this interlocking, stackable rear bump stop system allows suspension travel to be optimized without unnecessarily sacrificing articulation. Proper rear bump stop engagement is essential to prevent shock bottom-out, tire-to-fender interference, and suspension bind, and this system provides the flexibility to dial it in accurately.

Unlike fixed rear spacers commonly included in lift kits, the JKS1149 kit offers five selectable height options—2", 2.5", 3", 3.5", and 4"—allowing adjustments to match rear shock length, tire size, wheel backspacing, and overall suspension geometry. The interlocking design ensures each spacer section locks securely into place for strength and reliability under heavy compression.

Installation is simple with included mounting hardware, and once installed, height adjustments can be made without disassembling the suspension. Whether the goal is maximizing tire clearance or protecting rear suspension components under hard articulation, the JKS1149 Adjustable Rear Bump Stop Kit delivers a clean, effective solution for properly setting up a Jeep Wrangler JL.

Features and Benefits: