Dodge does have a recall on the steering linkage for some 37,000 trucks. Not sure if this is your problem. For what it is worth, I have an 08' w/2" leveling kit on 35's and have not experienced the problem you have described.
Here is the link:
http://www.internetautoguide.com/auto-recalls/09-int/2008/dodge/ram-2500/index.html
Here is the link:
http://www.internetautoguide.com/auto-recalls/09-int/2008/dodge/ram-2500/index.html