Help! Some kind of electrical problem

Oh yea, theres a ground on the back of the motor that goes to the body too. I'd check all of them. But if it is a ground, its likely in that little block at the frame.

dude this is crazy, I was gunna jump on here and ask the SAME thing! 98 tacoma, just clicks like the battery is dead but its fine. I was gunna just replace the starter. I dont know, at first it would only happen when I dumped my truck then put it in park. If I put it in park then dumped it every thing was fine. A couple days ago it started doing it more often, even if I dont dump the truck at all, its getting bad!