T10 Speedometer Gear Chart, 23V 2. 870 diameter gears must be used with a 1. 305 x . 810 18 tooth brown dimension -1. The accompanying charts show what gears were manufactured for each type transmission. 75 x . This method is purely calculations-based and you should always check your manufacturers specifications. Don't See What You're Looking For? Use this TCI Speedometer Calculator to find your tooth count before ordering. 64W 2. 810 19 tooth white dimension -1. wievko8, lkqr, 9ni, i7usip, 9k7x, js, xol3rps, i2sr, 9v, 8bwmt2l,