Yeah, I had read some stuff that you guys had mentioned about Lipo batteries. I'm not ready to put that much into it yet, just looking to get a little more out of these trucks... maybe just get them up to speed with what is current, not looking to go over the top yet. Basically, I have two beat up old trucks. I'm not planning to replace every part, just hoping to get a boost a little at a time and looking for the best place to start. If the old motor would do better with new bearings, then I'll look into bearings. If I would get more out of getting a new motor with all the other drivetrain being old, then I'll look into that. (The new motor is what I was thinking I should focus on, but I'm asking here because maybe I'm wrong.) Anyway, I guess what I'm asking for is probably impossibly... you know... the one perfect thing to replace.