no way to know without opening it up and counting teeth or by putting it in a known gear and turning it over by the input shaft and counting how many times the differential spins with respect to the the input shaft. To do this you have to do some math first.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.