hi, had a new cluch fitted friday and it seems like i have lost power in 3rd 4th and 5th? i was expecting more power now the cluch is not slipping? any ideas? also i seem to have a knocking when breaking or accelerating like somthing is loose and swinging?

 

What clutch did u fit?

where is the noise comin from?

 

Take it back to where you had the work done mate ASAP,get them to check underneath to make sure all is ok.
The lack of power might be down to a Vac. pipe come off somewhere when the gearbox was removed.