[maple_leaf_eh]

Yup! That is carrier track. They are a simple steel casting (?) forging (?) dry pin connected by dry pins. There is a limit on how much wear track links can safely tolerate. After that point, I believe they are considered unsafe to drive or at least untrustworthy.

Someone more knowledgible on carrier components will have to jump in on what parts are scarcer than others.

Beware, there are no vaccinations available for the ROT* disease. Rusty Old Trucks will give you nothing but grief!