Cusco LSD Type RS 1.5 Way | Toyota Corolla AE86 (83-85) Levin/Trueno Zenki (LSD 130 L15)If you need the absolute best in traction, a Cusco Limited Slip Differential is what you seek. Cusco LSDs allow you to chose 2 of 3 settings with each unit just with a simple overhaul. In the Type RS, it's springs absorb the initial torque. Compared to the Type MZ, the Type RS' initial torque comes on more gently. The response of the RS has lower friction and in turn, is better. The Low Initial Torque means Less Power Loss. This equates to lower lap