Why is there no drive power? It engages all gears just wont go?

4WD?......Transfer case in neutral?

Did you do the clutch BECAUSE of losing drive power on the highway. OR did you lose drive power AFTER doing the clutch? DO THIS... Put a BLOCK in front of & in back of a wheel to prevent it from rolling Now, start the vehicle , put it in gear & release the clutch pedal Now look under the vehicle to see if the drive shaft moves. If it does , then the rear end has problems. If it doesn't move, then either the transmission has problems , or the clutch is disengaged

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