I have a 1992 Chevy 1500 Z71. The past few weeks while I have been driveing through the woods I have hit a few bumps in the road and my transmission keeps jumping out of DRIVE. A little annoying but I could deal with it. Until two days ago I was going through a bad mud hole and had to do it with a fair amount of speed and through the middle it got a little rough and jumped out of gear again and caused me to get stuck. What could possibly be the problem and what can I do to fix it?
