Originally Posted by
TomL
From your description of everything seeming okay except that the body moves relative the axle, it's most likely a problem with the watts link. If it's an aftermarket, adjustable watts link setup, I'd look very carefully at the center pivot. I've seen more than one of those that cracked or even broke off. The car will then feel very sloppy. Other possibilities include decaying rubber bushings (stock watts) or damaged rod end (aftermarket). I've also seen the upper watts bracket on the chassis fatigue and break.
Look on the bright side, though. I had a buddy run almost an entire enduro, 75 minutes worth, with the center watts pivot broken off completely. And he almost won. So it's not THAT big a problem.:)