Chad,
On your truck there should be three motor mounts and one transmission mount. One motor mount is under the front of the motor and attaches to the front cover and the frame. Then there is a motor mount on each side of the bell housing. The transmission mount should be at the back of the tranny and attaches to the cross member. Take a good look at these mounts and see if the look distorted or broken. There should only be about 1/2 or so between the fan and the radiator, so you can see that it wouldn't need to move much to hit the fan.
Most of the vendors sell these mounts.
motor mounts Kurt
