You can identify the difference between a 1.82 and a 1.76 by the length of the input shaft Example: the 1.82 with have a 12 5/8" shaft and the 1.76 will have a 12 7/8" input shaft. You can buy a complete build kit from PTC converters. The differece between a pro-brake and regular brake is the pro-brake will leave on a 4 ths. tree, where as the regular brake has a slower release.
Hope this helps.
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