ruffrider4403

i put a new clutch in my 96 mustang gt (5 speed) and right when i start going in first gear or reverse, the car shakes really bad, but once you start going, its fine (shifting into 2nd, 3rd, 4th, 5th) just first gear and reverse. the clutch isn't real extreme just a mild upgrade from factory. it worked fine the first few times i drove the car but then one night i went out racing and thats when i started having problems. Also, the clutch cable seems to be stretching out or something as well because i keep having to put a couple washers where the cable connects to the tranny to tighten it up. these two problems may be related and may not be. if anyone could help me or has had this problem, please let me know. Thanks alot.