BooMNightcrawl

Hi

I am having trouble with my Scooby shaking when i change gear at low rpm's. it seems to do it mostly at low rpm and is most noticeable in towns when in lower gears, just due to lower speed and rpm im guessing. if im in 3rd approaching a roundabout and go into 2nd it just shakes until i release the clutch, then it stops. Another thing i have noticed is it only shakes when allowing the clutch back up, not on the way down. The clutch seems to be strong as an ox though as i have done the hill test in 5th etc and had no issue with it what so ever. also the shaking only happens whilst changing gear, once in it stops even if i keep it at low rpm. I can avoid the shaking by changing early and keeping the rpm up a little but it is getting annoying. What could be causing the shaking?

cheers

model: 1998 Impreza 2.0 sport 4WD