So I have the usual mods to the transmission in my 2000 GT - short throw, adjustable cable, racing clutch of unknown origion (installed by the previous owner). The problem is the tranny grinds when I shift hard into 3rd, and really its notchy into all other gears. I don't think its the cable as I just broke and replaced that about 2 years ago and only put on about 4 thousand miles since then. Could replacing the gear oil with something a little better help me out (royal purple maybe)? The car only has 52k and I'm hoping I don't already need to scrap the tranny. I want to get this sorted so I can head to Englishtown to make a few passes. Thanks for any help.