Updated the axle output shafts using 1mm pins, much, much stronger and a much more positive drive. If anything fails now it’ll likely be the teeth on the gear or something else.
I appear to be right behind you printing my Truggy, I just started working on the servo mounting bracket this morning - fighting Fusion 360 to import the STL file and re-scale - And then I get a Thingiverse notification to say you’d uploaded the modified version 
Many thanks for all the hard work. I’ll upload photos of my Truggy later.