You only need one Robinson gear. I ran my tranny with only 2 gears so I didn't have to grind the gear, the other Robinson gear I mention I ground down for all 3 gears. Both Robinson gears are the same part number and gear. I gave the part number for, the Hot Racing gear too. The HOT racing gear...
Hello all with the HG bruiser clone or even the Tamiya Rerelease bruiser I have done some mods to the transmission.
Being I crawl, I decided to convert to all gear 4wheel drive using the Robinson Racing 22t gear.
The gear needs to be narrowed if you want to keep all 3-speeds. I had mine set up...