Jeep Wrangler Suspension Lift Kit - Front + Rear - Skyjacker - 4.5in Comp. Box w/Dual Rate LT Coil Spring - `21-`23. A purpose-built suspension upgrade for 2021–2023 Jeep Wrangler JL (including Rubicon 4XE 4‑Door), this Skyjacker 4.5" Comp. Box kit combines long‑travel dual‑rate coils and track bar corrections for a balanced off‑road setup.

This kit uses Skyjacker's progressive variable rate, 2‑stage dual‑rate long‑travel coil springs. The first Flex Rate provides compliant articulation and helps keep coils seated in the upper mount and tires in contact during droop; the second Ride Rate engages on compression beyond the flex stage for controlled on‑road behavior. Rear coils are side‑specific to work with the Wrangler's suspension. The kit includes a replacement adjustable front track bar with pressed‑in HD OEM style rubber bushing and an adjustable 3/4" heavy‑duty rod end, a heavy duty rear track bar upper mount bracket to properly center the axle, front and rear bump stop spacers, and extended length sway bar end links with pressed‑in HD rubber bushings. Designed as a straight bolt‑on direct fit, it preserves proper OEM suspension geometry and is compatible with the vehicle's Electronic Stability Control (ESC) system.

Features

• 4.5" Comp. Box with dual‑rate LT coil springs (2‑stage progressive design)
• Side‑specific rear coils for JL handling characteristics
• Front adjustable track bar with HD rubber bushing and 3/4" rod end
• Heavy duty rear track bar upper mount bracket
• Front/Rear bump stop spacers and extended length sway bar end links
• Straight bolt‑on, direct fit; maintains OEM suspension geometry; ESC compatible

If you have questions or want advice on fitment and options, call us directly: 512-982-9393 (TX) or 562-981-6800 (CA). We have two installation and customization locations in Austin, Texas and the Los Angeles, California area and can install this kit on premises. If you're purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov