Some of those upright trikes look pretty sweet. Perhaps not quite what @
Darth Lefty had in mind, but Whew!!!
One article mentioned driving only one wheel, but rear differentials are available, although not necessarily limited slip. One could easily enough allow forward ratcheting on both wheels to give a form of limited slip. Perhaps continuous bearing lock like PowerCranks use.
https://www.ebay.com/itm/Handmade-Do...2/253090636524
https://www.ebay.com/itm/Bob-Jackson...7/113540208102
https://www.ebay.com/itm/Titanium-Tr...A/312438835333
OAKLAND for that Titanium Trike.
It looks pretty sweet with "Positrac". And, good price... I think.
https://www.ebay.com/itm/VERY-RARE-1...d/392175420673
