LOWER CONTROL ARM. RIDE CONTROL. STABILIZER BAR. SUSPENSION COMPONENTS. UPPER CONTROL ARM. Town Car; 15mm. Town Car; 17mm. Town Car; All. Town Car; From 12/13/05; 15mm. Town Car; From 12/13/05; 17mm. Town Car; To 12/13/05. Town Car; w/Handling Suspension. Town Car; w/Heavy Duty. Town Car; w/o Handling Suspension. Town Car; w/o Heavy Duty.