Just wondering what kv motor you went with?
I just put a 3650 4300kv and 60a GoolRC into my Stampede (Grave Digger), 19/90 gearing, and it absolutely hauls arse.
I may have to hang onto the Ruckus and throw a GoolRC combo into it.
I stuck a Tazer Twin Motor/ESC combo. The ESC is actually inside the motor housing . You would think there would be over heating issues but it has been running perfect for several weeks now. It is only 3000Kv motor rating. 45A continuous and 100 A peak AMP ESC. Fully programable but I stuck it on right out of the box. No issues at all..I have the 87T metal spur with 19T pinion. With the stock 1800mAh LiPo, it lasts 8-9 minutes. With the 5000 20c LiPo, run time is 18 min. I liked her set up so much, I ordered and have the same upgrades for mine but I am sending mine in so they can see the issue with the replacement ESC. I am hoping to at least have the original set ups for back up if they resolve the issues.