I came up with an idea for a homemade spring compressor a few years ago that has always worked great. Put the spring in place. Take a piece of 3/8 stainless steel threaded rod and cut it long enough to go through the spring, lower control arm and upper spring pocket, like the front shock would mount. Cut two 12" pieces of 1/4" bar stock and drill a hole in the center of each. Put one under the lower control arm, threaded rod through the center hole. Put an oversized 3/8" nut on it. They make them with a 3/8" thread but the wrench size is 11/16". Do the same with the threaded rod sticking out of the top. Now just take a long 11/16" box end wrench and start turning the top nut. It'll draw thw lower control arm up, compressing the spring until you can get the spindle on. Just watch the bottom nut and don't let it spin off. I've used this on many springs with no problem and I think i made it for about 10 bux.