had same problems and mine was due to too much "play". on the linkage right above the cab floor was an area that appeared to be adjustable and sure enuf it was. shortened that baby up and it made a world of difference.

54 3100 w/62 235 "Yosemite Sam"
Born a Jay Hawk, raised an Okie and resurrected in Texas!http://community.webshots.com/user/djed50