Hello guys I have a problem, the other day I drove up a motorway driveway with my car there scratched something under the car 1-2 in later it was gone again. Then I suddenly noticed that the engine turned up more than power. It got worse and worse, can almost not drive anymore. I thought it was the clutch, had changed it then, but the problem still exists. Can it be the gears, the gears turn normally, no M or it’s probably the drive shaft or even the diff, which you think could be that. Thank you in advance The vehicle : Subaru Legacy Station Wagon II from 1998 with 2.2 l engine. mileage slightly over 150,000 km