Just got a 2001 Camaro, LS1, T56 - There is resistance (and subtle grinding) going into 3rd and into 4th and it sometimes pops out of 4th. I have been told everything from: Add some fluid to complete rebuild. Please give me some ideas on how to smooth this out. If it is just the syncro, what should that cost to fix? Can I do it myself? Can you refer me to good esources.
Also the speedo reads about 47 MPH at 65 MPH - Any help with that?