SAAB 93 REAR COIL SPRINGS 

If you have broken coils, rusted, noise from either bump stops or you just switching to shorter coils, this is the easiest way to do it.
However watch where you hands go and watch for the screw-jack not to slip.
In addition, dont do it this way, and instead remove the complete control arm if your inner bushing is new, this method works fine with old bushings.
Torque specs:
Control arm outer bolt (use new bolt or use your brain): 75nm +90 degree or 55lbft +90 degree
Lug bolts: 110nm or 81lbft