I need some help please..Ok this is my prob,i got a 2.5 stampede and i dont know if i have a problem with the tranny.i start it up and when i give it some throttle it barely move.I checked spurgear and its tight .Then i placed the truck on the ground and I'm able to roll truck while holding the spurgear.i took the tranny out opened it up and all is fine from what i can see.i then closed it up and here is where I'm confused.I am able to hold the spurgear and though i can't sping both yoke manually by hand while holding the spurgear i am able to spin one yoke while the other side doesn't spin.Is this normall and if not what could be the answer to my prob?Guys plese help this is my first nitro stampede so i dont know much about them.Thanks in advance...