A few weeks ago, I got a new tyre for the rear offside. A few days later whilst driving on tarmac dry road, 40mph approx..the back end stepped out.
Thought I had a puncture but didn't. Then decided to change the other 3 tyres as they had considerablly less tread. Goodyear F1's.
Today, same road conditions same speed it happened again.
Could this be an alignment problem? The car is an 03 WRX, no modifications.
Any sugestions gratefully received.