Power Steering Fluid problems of the 2007 Dodge Durango

Brought truck in for engine light on & no power on March 9, 2013. . . Claimed spark plugs put in by manufacturer were 30,000 miles plugs. . . . Who does that anymore. While doing the tune up, mechanic noticed fluid dripping. Power steering pump was leaking. Put new pump in (March 12, 2013) which seemed to be bad. Ordered another pump (arrived March 15, 2013) which worked but the rack in pinion steering blew seals on both ends. Ordered part which took several days to come in (hopefully March 20, 2013). The mechanic believes the rack in pinion was not right from the beginning. This would account for the front tires wearing quickly & funny. It would also account for the noise heard on the passenger side front end when hitting bumps. Both these issues were brought to the dealerships attention prior but nothing was done. Claimed they didn't hear the sound when test driving. Hopefully this will be resolved today March 20, 2013. This is one of many major problems we have had with this vehicle. At least we were Smart & bought the extended warranty when we purchased the vehicle. We now know if we bring the vehicle in for a simple repair, an entire system will be replaced.