Usually rear tyres off balance the whole car vibrates not the steering...yeap.alignment and balancing.. hope by swapping rims can kawtim the problem. but if really the front rims bengkok already, swapping it to back will also cause the car to jump right?
Center cone already fitted, right? That should centralized the rims already....the latest troubleshooting pointed at rims not ok. bout the fitting, maybe need to give it a try too. that will be another 10 more days. im going to bring to a more reputable shop that better with modified car.
more suspense thing is today one of the brake rotor jammed. pulled aside, wait it cool, spray some wd40 and pump it. voila.
brake oil flushed all 4 corners not long ago. what would have caused it by the way?