Old Man Emu has designed their coil springs to accommodate off-road vehicles with the intension of supporting full loads, while providing the driver with a comfortable ride.  Old Man Emu also designs a wide range of coil springs for each vehicle.

Old Man Emu (OME) designs a range of coil springs individually tailored to each vehicle make and model, and that vehicle’s load carrying capacity.
OME coils springs generally provide a 1/2 to 3 inch suspension lift, depending on the model, but they are not actually designed around achieving a particular lift height.