Both Countershaft Teeth are Broken at Different Places now see Mechanic's Ability to Repair 

[@nineteen-sixty-nine9373]

The lower/smaller gear teeth look like they have been smashed with a hammer deliberately?

[@muzikizfun]

The abuse of the driver who did this will just break it again! Loading vehicles way past their design limits and having unscroupless owners of these vehicles hiring the cheapest drivers is why these vehicles break like this.