02-10-2018, 09:09 PM
I recall a TTC guy saying on another forum that the joints in the modules wear to match each other. In theory you can mix and match, in practice it never quite works out. I believe he was referring to the ALRVs (TTC's older bendy streetcars), but I wouldn't be surprised if it applied to the Flexities as well. Perhaps if you replaced all the bearing surfaces in each part it would work out okay.
...K