I'm looking for a cheap way to level the front of my truck to equal the rear. Someone on the forum recommended the Toytec 1/2" front top spacer plate. Can this be installed without compressing the coil? I don't have a spring compressor and I'd hate to spend more money paying a local shop to compress the spring than I'd be spending on the plates. It's my understanding that these get installed on top of the top plate. When I downloaded instructions it shows compressing the coil.