3.75″ ID coilover springs are made to fit 3.0″ coilovers. At AccuTune Off-Road we will help you select the right 3.75″ ID springs for optimal handling, ride quality and off-road performance. We have a couple different rate calculators as well as lots of vehicle weight data so whether you’re building something new or fixing up an existing vehicle, we can help get you the right 3.75″ springs. Our Eibach and PAC Racing springs fit Fox Coilovers, King Coilovers, Sway-A-Way Coilovers and all other brands of off-road shocks. For the ultimate performance and service, get your 3.75″ ID coilover springs from AccuTune Off-Road.