This was a new one on me. Took the family on an evening drive to the local Ice Cream shop going through the drive through, the line was pretty long so I put the truck in park waiting for the line to move. I started to put it into drive and as I got to Reverse ( I could feel it go into reverse) the lever just dropped all the way to the drive position but the truck was still in reverse, could not get it out of reverse or back into park. I killed the engine ( mistake because I could not restart with it in Reverse) I am blocking the drive through line but luckily they could go around me. I knew it had to be something with the linkage from the steering column to the tranny but it was 97 out side and i did not want to jack with it. I called RoadSide Assist to come take me to the shop,( it was Sunday so I would have to just drop it at the shop ). The tow truck showed up pretty quick, I told him what had happened and he said "no Problem, I can fix it". He squezed under the truck and in less than two min came out and said you are good to go. He said he has been towing for 10 years and has fixed this issue many times. Any guesses ? The shifter cable connects to the tranny with a circlip and when the bushing gets worn the circlip just comes off. He put a paper clip on the end of the cable and bam I was on the way. I still did not want to jack with replacing the cable in the Houston heat so I had my trusted mechanic do the job the next day . $300.00 ouch !