i have this prob, i replaced clutch month ago apparently it needs adjusting and now i have this prob on load and quick shifting 3-4th will grab before hitting 4th gear, spoke with machanic apparently redline might fix ill let ya know if it fixs the prob...else was told that sometimes little metal pieces falls off the syncros and when ya change gearbox oil it comes out but it doesnt explain how lubrication will fix the problem...but ill let ya know how i go b4 ya spend big dollars on getting it fixed..