Revo 3.3 Tranny with all Metal Gears problem

[Finnster]

This guy (boghos is name here) has a locking hub for the second gear that would work, if he still sells them.

I can't find a pic, but its an alu piece that is solid and replaces the clutch. He used to sell them seperately until people starteddoing the (free) mod above. This may be the easiest/ most reliable soln.