The 47-tooth center differential spur gear (0.8 metric pitch, 32-pitch) , upgraded to 40Cr Carbon Steel , hardened black treatment, to make it more durable and sturdy to use.
Laser etched tooth count marking, consistent with original factory data, replaces factory part number (8573, 8574, 8575) . Requirements: All packaging accessories are pre-assembled. It is recommended to use screw glue to ensure stability and prevent loosening.
