4Runner Rolls While In Park!!!

http://www.youtube.com/watch?v=Yp6clZg-QLk


The above link is a video my wife took of me in my 2004 Toyota 4 Runner (83k miles) on Monday 10/11/10. The other week my 4Runner started rolling down my driveway while in PARK and while the car was off! So I had her video this so I could show the dealership service department. In this video I am parked in my driveway, car is in PARK, parking break is engaged, and the engine is off. It starts to roll and you can hear the awful sound. The only reason it stops is because I put my foot on the brake. If I didn't, it would continue to roll. I took it to the dealership in town and showed them the video. We couldn't replicate it yet they suggested to replace the transmission. I have yet been shown how that will prevent this and the car works fine otherwise!!! I have never heard of a bad transmission causing vehicles to roll down hills while in PARK! Anyone have thoughts on how to fix this??? Has anyone seen this? This is FAR FROM NORMAL and is a major safety issue! I am not that familiar with your transmission, but most automatics have a parking pawl that locks the transmission in park ane will not allow it to move. Check with a local trans shop to see if that may be a problem. Thanks. I will have them look at it.Car Repair Talk's forum.