Sportster History (with VINs & Specifications ...
At the start of the 1963 model year, both XLH and XLCH transmissions were assembled with a slightly higher 3rd gear ratio. Not long after production, it was found advisable to reinstate the 1962 3rd gear ratio gear sets starting with engine # 63XLCH1305 and lower numbers (1199, 1216, 1221, 1240, 1261, 1268, 1274, 1289, 1297 and 1298).
Get Price