One problem related to steering rack and pinion has been reported for the 2008 Dodge Ram 1500. The most recently reported issues are listed below.
I had gotten new tires on my truck and an alignment done on the truck and was told my power assist rack and pinion was failing and would have to be replaced. After doing research online about the issue I have found that there areally very many people with the same problem with the mopar part failing while driving or being told they need to replace it. With so MA you complaints about it on the 2008 models alone, they need to look into the issue as it can cause a serious accident or the death of a person. Several have complained that this part has failed at mileages down to 45,000 miles. It sounds like this may be a faulty part.