brushless gearing for 3906 emaxx

[mkrusedc]

No, I have a 3906. Click on my sig to see my upgrades.

For a long time I was able to use the stock slipper with associated diff ball and a heavy duty spring without any problem. That could be an option until you can find a suitable upgrade.

If you want your drive train stronger I would sugeest at a minimum an aluminum diff cup with modified ring gear and steel idlers. While your tranny is open you might as well change out you input shaft roll pin. These are the most common weak spots.

If you don't mind down time you could just replace/upgrade when in breaks. You may be surprised how long some weak spots can last.