With the control arms and coilovers attached to both the chassis and rearend, Jarvis torqued the bolts down to spec. DSE recommends using high-strength Loctite on the upper shock bolts, and tightening both ends to 70 lb-ft. The control arms require 110 lb-ft. While a spring rate of 150
lb/in might seem soft, it's important to remember that the stock Cutlass had no rear sway bar at all, and the addition of the DSE bar will increase roll stiffness dramatically. Furthermore, the A-body features springs that are mounted directly to the rearend housing, which yields an effective wheel rate that's identical to the spring rate. In cars where the springs are mounted in the control arms, the resulting linkage ratios create a wheel rate that's often far softer than the actual spring rate.