18-Up Wrangler JL 4 Door 2.5 Inch Lift Outback Coil Spring Pair Front TeraFlexDedicated overland travel Requires unique spring rates to handle heavy loads and continuous mechanical resonance compared to standard coil spring rates. That's why we paid special attention during spring rate tuning and development of our Outback Lift Coil Springs. All this adds up to our load enhanced heavy rate lift coil springs that meet the demands of a fully loaded Jeep while maintaining advertised lift height. TeraFlex JL: Lift Coil Springs are