My other t maxx is running strong. Its a pro 15 (new piston n sleeve) still has reverse. It has 3.3 arms rpm front tower 3.3 rear tower 72t spur custom mounted buggy gas tank 5 cell hump. I took tires off to paint the rims. The only problem is I think I fried my receiver somehow because now I can't drive it more then 20ft away before I lose control. Ill get a new receiver when I order the rest of the parts needed for my other maxx. The plan is to give my pro 15 to my girl n I whip the os21