While assembling a Yokomo YZ-2DTM3 for A Main Hobbies I figured I show you all how I put together a ball diff.
Check out my products like the grease shown in this video here...
https://www.jconcepts.net/shop/rm2
More about the YZ-2 DTM3...
https://teamyokomo.com/product/b-yz2dtm3/
Pick up a YZ2 kit here...
https://www.amainhobbies.com/yokomo-yz2-dtm-3.0-1-10-2wd-electric-buggy-kit-dirt-yokb-yz2dtm3/p978924