I posted this in the 80 Series Tech Forum, but I think my issue would be the same with other series as well. My 1993 VX HDJ81 5spd manual does not want to down shift from 3rd gear to 2nd or 2nd to 1st unless I am at almost a complete stop. I am fearful that it is the synchros. I have tried double clutching and old school revs to speed with no luck. I plan on bleeding the clutch in the hopes that may solve it. Also thinking about the transmission fluid as well. I have zero issues shifting up. Any thoughts or insight is greatly appreciated.