Notes: 131374 GEAR Z36 M3.5 4WD is original CARRARO product. 131374 GEAR Z36 M3.5 4WD5 is commonly used in transmissions/axles/engines 137374, 137376, 137378, 137379, 137380, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849