If the car moves when throttle is applied, then its working.
What kind of clutch is it?
If you don't know, what does it look like?
Does the truck move??
Does the engine wine, and not move?
Does it wine, and then move?
Does it always move even at idle?
Do you not have it on the engine and your installing??
Comon with the vaigue questions.
Tell me what it is, or is not doing and I'll try to help.