Awesome, that’s exactly the kind of information I needed! 
Are MMTrackAnimation and TrackAnimationDrive vastly different? I was working on implementing the modular drivetrain onto my tank, but it seems as though it would be incompatible as TrackAnimationDrive relies on static meshes instead. And the fact that the steering clutches need to reference the former kind of component.
Edit:
Ah, I see. One is a C++ component and the other is a BP*(I assume deprecated version?)*. Got it to sort of work, but seems like it’d be a lot of work making it work with the new C++ component - so I’ll stick with the more basic approach for now. 
Been trying to tweak the suspension some more, also saw a comment that you had made that the suspension stacks could be rotated a bit to imitate the behaviour of torsion bars - so am trying that out now.
Also added sockets for the top part of the road wheels, so the top of the track will get pushed by the wheels. You reckon this is fine or is that what the sway physics constraints would otherwise achieve?
Watching this video makes me think the torsion bars have different strengths, being more stiff towards the rear to prevent smacking into the hull. Been trying to find information about this but haven’t had any luck thus far. What do you reckon?
Edit 2:
Done some more research, indeed seems like 4(?) torsion bars were a bit sturdier. As well as some torsion bars were also connected to shock absorbers. Interesting