ok so i have a 2002 wrx wagon. i recently put a new clutch and flywheel on it. when i picked it up from the shop it was really easy to push in and let out alot sooner than before. i have driven about 300 miles on it and the pedals back to being stiff. i dont know if its just me used to the pedal now but. also every time i slow down from 2nd 3rd or 4th gear it sounds like the gears are grinding. like gear mesh. it sounds like they are vibrating together and i dont know why. i took it back and he said its normal but i dont think it is. i need some help about this thanks...