IF you are going to crack the TX case, consider ordering replacement bearings. Also you'll need a gear puller or a hydraulic press to get the gears on and off. The best way to do the 1 and 2 gear fix will be to get replacement dog teeth sets. Call Larry at APE (See ABB suppliers list). New OEM is unobtainable, but used 4 and 5 gear dog sets are usually OK.
Gordon Raymond can tell you about the silk thread trick to prevent TX leakage when you reassemble it.
Last edited by 60sRacer; 10-24-2017 at 09:29 AM.