My van will not go any where in drive or reverse. When in park I am able to push

Broken/dislodged shift cable.. Look under hood at transmission while helper shifts from park to drive to see if 'transmission linkage' itself is moving.

WITH the parking brake on and a helpers foot on the brake pedal AND (best) front end up on jack stands, have it running and put it in gear , watch for movement of either axle shaft , maybe outboard joint is stripped. No strange noise?