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These JKS 3.5" Heavy Duty rear coil springs are designed for 2018–2021 Jeep Wrangler JL rear applications that require stronger support for heavier loads or aggressive off-road setups. The heavy duty rate helps control sag and preserve rear ride height when carrying cargo or towing, maintaining more consistent handling under stress.
JKS Manufacturing 18-21 Jeep Wrangler JL 3.5in Rear Coil Spring Kit - Heavy Duty
