LeggyFan

not yet - but will spend some time doing an elimination as suggested - will begin with a wheel balance and check of the CV's

No, goes fine - no missing, shuddering that I can detect. Plugs done when the trans was flushed (20k ago)

hey guys, just new here and thought the site may be a place to ask some advice. I have a 2005 Legacy 3.0R - goes well but one problem - not sure of the best sub topic so here goes: When accelerating hard (lets say putting the foot flat when travelling at 80kmh to accelerate onwards) there is a vibration/shaking that happens. It only happens under hard acceleration, light-moderate is fine. There are no odd noises (bangs, crunches etc) or other issues at any time (cruising, braking, coasting etc.) transmission was flushed approx 20000kms ago. Any ideas before I head to a mechanic to investigate further? cheers

hey guys, just new here and thought the site may be a place to ask some advice. I have a 2005 Legacy 3.0R - goes well but one problem: When accelerating hard (lets say putting the foot flat when travelling at 80kmh to accelerate onwards) there is a vibration/shaking that happens. It only happens under hard acceleration, light-moderate is fine. There are no odd noises (bangs, crunches etc) or other issues at any time (cruising, braking, coasting etc.) transmission was flushed approx 20000kms ago. Any ideas before I head to a mechanic to investigate further? cheers