First a little history on our car. It's an 05 Cavalier 85k miles had been wrecked when we bought it. We fixed the damage mostly cosmetic and a new radiator and it needed a couple wheels. The guy we purchased the car from buys fixes and resales wrecks. After all the work was done and the car still on his lift we pulled a tape measure and everything was straight and even.
Now the problem we are having is when driving on a loose gravel road or a rain soaked road the back of the car feels very unsettled almost like it wants to drift. I've checked everything I can think of just looking for opinions of what I should check
I'd recommend comparing it with another un wrecked rear end. But, it may also be normal. The rear is a solid rear axle, which is a bit easier to get it to spin on the rear. That may not be much help, but hope it helps some.