Postby TRDGUY » August 22nd, 2012, 12:03 pm
Im not a expert but usually when these things happen you can have alot of possibilities, from clutch (master , slave cylinder), clutch, PP, linkages bushings , synchromesh. oil quality
But if its only 1st gear i would more lean to something directly related to that gear, maybe its a bad syncromesh, im just speculating it could be something else. Try changeing the oil and see if it improves .