You can definitely do the job without a torque wrench. The bolts that need to be torqued are the mounting bolts for the shocks. From what I understand from other message threads, (do a search), the torque specs for the front don't work for the Bilsteins because of the difference in the width of the shock eye metal inserts. Just be careful not to over tighten anything and pay attention how tight things were before you removed them; that should give you a ball park idea of how much torque is needed.