This drivetrain was modelled in Solidworks 2019-2020. Many of the dimensions are equation driven so it can be easily configured for the season design requirements. It also has three main configurations for wheel types: Colson wheels, pneumatic wheels, and mecanum wheels. The mecanum configuration is a little rough because it is the last one I got to, and the season starts tomorrow. If you use a different CAD software, I also included STEP files for each of the main configuration, but Solidworks (free for FRC teams) is most effective. I also included a BOM for the Colson configuration although it could be missing a couple of parts.
Any feedback is helpful.