Ok Guys....I know what is wrong, thanks to Chris at Traxxas Tech Support, (Thanks Chris),...About 3 weeks ago I had to replace the spool in the rear differantal, the screws had broken off that hold the spool to the ring gear. Anyway, I tore the front diff out also just to check the screws for being tight. After I got the truck all back together, I had to reverse the forward-reverse servo reversing switch to make the truck go forward. I fiquired I had bumped the switch somehow. Right after this I started eating trans output gears. It seemed odd to me I was stripping the reverse gear, but the truck would still go backwards, not forward. After talking to Chris this morning, he fiquired out I put my diffs in upside down, thats why I had to reverse my servo direction to go forward. So, moral to the story, be careful how you re-install the diffs in your truck, the heads of the screws that hold the diff cases together have to be on the left side of the truck in the front, and on the right side of the truck in the rear,(viewing the truck from the rear).....Coop