Tank Treads

I have modeled and rigged some simple tank treads, and am looking for a tutorial on the physics part, so I can drive them over bumpy terrain and the treads bend and follow the terrain as a real tank would. Any suggestions?..Any help here is appreciated!

Ah, this is cool…thx!

I have some video tutorials on this on vimeo …

this one…

specifically covers tracks conforming to the ground…

there are 11 videos in all … (each only about 10-15min each) …
I tried to cover the subject throughly…

and I should redo some of the earlier ones at some point…

this is good stuff!..Thank you so much!..I got a masterpiece im the making!..lol