I use the weight of the car to compress the spring. First thing is to break the upper nut free. then jack the car up using the LCA, put the frame on a jackstand but keep the jack under the LCA with it up as far as you can, then out the strut mount bolts, the finish taking off the upper net, slowly lower the LCA. Installation is the opposite. Worked on ever strut car I ever had to replace springs on, 86 Daytona, 05 Neon, 89 Voyager, 95 Mustang whatever year Cobalt my daughter had.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.