Curious if the gearbox in the chassis has all the gears and just needs the drive shafts?
https://estore.bachmanntrains.com/index.php?main_page=product_info&cPath=71_124&products_id=419
Does the below diagram answer your question?
https://www.bachmanntrains.com/home-usa/dwg/dwgs/28457.pdf
Rich
Not really, but thank you. I have all the documents. I'm interested to know if the 'complete chassis' purchased through the parts store has all the gears in the gear box. It doesn't say what it actually includes, and there is no picture of the bottom of the unit.
Try calling the Parts department.
Rich