[Mike Taylor 3601]

Usaully linkage adjustment effects you 2-3 or going through neutral,I'm guessing it's H pattern, try shifting really slow to 2nd, if shifts easier may be sycronizer starting to wear,if it's just a little wore may not grind yet,usaully a bad syncro will let slider and dogs scrape together on shift making scrape or gear grinding sound,be sure clutch is releasing good also that could cause but would most likely effect all shifts,also make sure linkage is not rubbing anything,also make sure shifter just don't need a litttle oiling up
Mike Taylor 3601