That is a broken reverse gear tooth on the outside of the 1/2 slider. It should be replaced as should the "force-chamfered" reverse idler.Bleyseng wrote: ↑Fri Oct 13, 2017 7:27 amI hope you are swapping out the reverse gear as it's pretty hammered from shifting into it while moving or mis-adjusted clutch. The slider looks ok other than the busted tooth again from forcing it into gear. These transmission are meant to shift slowly and with a correctly adjusted clutch.
I know tommu does not need a lesson in how to shift a VW transaxle, and could in fact tell you that there are times that a lightening quick gearchange is the more merciful well-synchronized shift than a "shift slowly".
Colin