ok the other night i dropped a friend off at a park and i had to drive through a field wasnt happy wit that but i stopped let her out and went to leave and hit this bit rock (didnt c it) and it went acrossed the whole bottum of the car it didnt hit anything important that i c but after that the clutch has been lik moaning wen i let it out in first gear. it drives fine feels ok just moans and makes some other noises. wat could this be?

also wen i buy a new clutch wats a good clutch is the spec 2+ good?