THE TRUCK JUMPS WHEN IN GEAR AND TRYING TO START, HARD TO SHIFT IN TO FIRST AND REVERSE, GRINDING WITH REVERSE, CLANCK/BANG NOISE AT HWY SPEED, AT SLOW SPEED IT SEEMS FINE, NO SLIPPING OR SMELL WONDERING IF ITS MY CLUTCH IS OUT OR ITS SOME OTHER ISSUE
CLUTCH/SHIFTING ISSUES/6 SPEED on 2003 Dodge Ram 3500
Sound like your clutch is not disengaging completely. I would also check your driveline for worn U-joints and differential for excessive backlash.
Like Johnny Mopar said it's probably not disengaging fully So double check your clutch master http://partimages.genpt.com/largeimages/907076.jpg and your clutch slave cylinder http://partimages.genpt.com/largeimages/907079.jpg and the book time to replace the clutch hydraulic assembly is 2 hours