I have a traxxas Slash 4x4 scale 1-10 Just a few pics here.

But now i have a problem.. It lost most power to the wheels, And ive had it taken appart and checked all the cogwheels and they do not seem to be worn or anything, and they fit exately as they should.. Also Ive checked the engine it still puts out a hell of alot of power, forward and backwards.. But its like when i put it all together it simply wount accelerate.. and its struggeling to move forward.. wonder if anyone have an idea.?
All drive shafts seems to be in working order, this puzzles me a bit.
