do I need new shock absorbers?

pull the shock bottom nuts off and pull the shocks off the studs. Then check ride heighth. If one sides low it may be that spring. BUT if front torsion bar adjustment is not level it can make rear high or low on one side. You can always run seperate shock lines and use the shocks to level it up but thats a band aid fix. One more thing. If someone has installed s/s springs the rear wont be level as the spring rate is different side to side.