I own a 94 gs300 with about 214k miles. Lately as im accelerating (not hard...mid throttle) the car seemed to pull very slightly in the back as the tranny is switching gears. As days go by, its been getting more pronounced. But today, is when i nearly took a crap. I went over an overpass which was bumpy & in the rain....and the car was literally trying to jerk me off the road. It was like a hard PULL to the side. I thought I had a wheel loose or no air in one of the tires....but that isnt it. Problem is coming somewhere from rear suspension. Suspension is completely stock.

Same feeling as if one had a frozen caliper when it pulls...BUT......
This only happens on acceleration, not braking!

Any help would be appreciated.

 

Any noise on bumps? I say get it in the air maybe the problem will show itself better. Sounds like something broke if it's getting to the point it's yanking you around. Other than that bushings can cause a pull, I know my control arm bushings are blown out and it has this wierd wiggle when I hit wet spots or hit a big bump