I have an 04 gto with just a little over 102,000 miles on it. I just replaced the clutch assembly along with the slave cylinder rough about 10,000 miles ago with oem. was stuck in dallas and had no choice cause I was there for work. just recently I noticed that if I drive the car hard it seems that third and fourth require a little more effort to get them into gear. just yesterday after driving the car for about 45 mins I could barely get it to go into reverse and also noticed that when I tried to put it back into 1st gear with the clutch in it wanted to grind gears. i'm not real familiar with the t-56 transmission nor with gm vehicles. this is my first one so any help I can get would be greatly appreciated .