My 06 obw auto trans has started to jerk very hard to the right. It happens during deceleration, occasionally in first gear and regularly in second. The wheel does return easily to center but often jerks back to the right. I replaced struts, ball joints, tie rod in the spring so I'm ruling those out. Right rear control arm bushing is original and is in "ok" condition. Power steering pump has been whining for 10k miles. Both cv shafts were replaced but have at least 50k on them. There is no brake grinding, calipers are not loose so i don't believe it is a brake issue. I let an old mechanic drive it this morning, he said it seems like a trans issue but he is not a Subaru guy. Anyone have any thoughts?