72 LeSabre ragtop I need to replace lower control arm bushings. I have removed calipers, sway and everything else. Ready to pop the ball joints so I can lower the control arm. I have never done it before and am just nervous about releasing all of that force in the spring. Can someone give me some advice on how to do it safely? One technique I saw was with car on stands, put a jack under spring. Loosen ball joint nut just a little, and hit the knuckle with a BFH until the knuckle pops down a tad. Remove the nut and then lower the jack/spring. I'd rather not buy any special tools if I don't have to... Thanks!