Cusco
Cusco MZ 1-Way Rear LSD, Mazda RX-7 (FC3S/FD3S)
$2,535.33
Taxes and shipping shown at checkout. Typical delivery is 3 to 7 business days across Canada.
✓ Confirmed-fit parts — add your vehicle in your Garage to check fitment.
Helical-gear MZ LSD for the rear differential on the FC3S and FD3S RX-7. The 1-way setup locks only under acceleration, power to both rear wheels when you're on throttle, then it releases on lift for a neutral, rotation-friendly feel. A great street-and-track balance for a rotary build that needs traction on exit without the on-decel push of a 2-way.
- Cusco MZ helical-gear limited-slip differential
- 1-way configuration, locks on throttle, releases on lift
- Rear differential fitment
Fits: Mazda RX-7 (FC3S); Mazda RX-7 (FD3S).


