So, I just replaced my clutch master, slave, slave line and flushed out the old DOT and replaced with prestone synthetic DOT 3. Well in my test drive I noticed that the clutch is slipping in 3 and 4th gear. If I punch it, the tech goes up but the car is not increasing speed...clutch slipping. What did I do wrong. I matched the new clutch master arm that attaches to the clutch pedal the same length as the old one. Is my problem in this the length of the clutch master arm or somewhere / something else?