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37-3873 or 37-3874
Matchless & AJS
M Part number is 57-1435
form and cut it to fit your specific application - use the drop down menu to select which line you desire - sold each
Triumph / BSA TDC Crankshaft Timing Tool (1) BSF / UNC - 6T / T100 / T120 / TR6 / T140 82-8193 37-3873 or 37-3874Finding true top dead center is now made easy using this to "2 into 1" locating tool. This tool will slip into any Triumph twin that features a top dead center hole behind the cylinder barrel. This TDC tool comes with two threads (BSF and UNC) on each side to work with early threads and later threads that were change on Triumph twins in the late 1960s. This tool will also work on 1969 and 1970 BSA A50 and A65 unit twins that can accept this locating