One of the aggravating jobs in 1/10 scale RC car maintenance. Diff rebuilds are such a pain, that the rebuild is put off too long in most cases. Ron Free of Rocket Products engineered and tested this workstation. And TPP manufactures them here in the USA, not in China.
Our answer to make this process easier is the Diff Repair Station. This logically organizes all the parts, bearings and the diff balls and keeps them where you can find them instead of looking on the floor! Small enough to have in your tool box.
The workstation is 85mm X 60mm X 15mm and 22 grams.
Try one, I think you will like it!