I have a 2003 3500 with the 6 speed. The problem I have is that its like I cannot disengage the clutch. The pedal will depress and I havent noticed any change in "feel", but the clutch will not release. I looked all over for leaks in the clutch cylinder and slave cylinder but it all seems tight and fine. Any suggestions on what may be wrong?

 

You probably need a new master/slave unit. Its now sold as a one piece unit so you don't have to bleed anything. I replaced mine a couple years back, I think I had about 150k miles on the original. Don't hold me to the mileage, though, I have CRS disease.
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