E Ton Yukon runs but will not move in gear HELP!

[dirtyriders-tjct]

E ton 150 Yukon will run and idle but when put in gear and given gas it just revs up.  Maybe a belt has slipped off?  Any suggestions?

[Dr.Dirt]

If its belt driven then I don't know...If it has a clutch, the clutch probably needs rebuilt because thats what my Blaster was doing when the clutch went out...I am sure someone on here knows about E-Ton's on here that could be of more assistance though.