Notes: 134075 COMPRESSION SPRING 1.5-7.7-21 is original CARRARO product. 134075 COMPRESSION SPRING 1.5-7.7-215 is commonly used in transmissions/axles/engines 137373, 137374, 137375, 137376, 137377, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849