The links can be bushed up to the larger size, but the bushings can break with a hard load, like a plow.
You can get by that problem with an implement that uses step pins.
The pin itself is stronger where it attaches to a Cat II. No bushing required.
https://www.amazon.com/gp/product/B01AX3JXCY/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
