Issue with mphs going to 0 while driving. Rpms go to 4

While driving the cars mphs will drop to 0 and fluctuate going up and down. However the rphs will stay between 0 and 3000. Car will jerk a little during that time then will pick up a little speed. Any ideas?!

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0