I have a 2004 ram 1500 4x4 5 speed manual with the 4.7 My truck currently has 55,700 miles on it. I purchased this truck new. I have a leak in the rear end that I believe is called the rear pinion seal. Its where the drive shaft goes into the rear end. You can see where it has been leaking and spraying around. Is this covered under my 7/70 engine and powertrain? I have kept up with the maintainence as scheduled. Also should I put the stock wheels and tires on before I go in? I currently have my 305/70/17's on. I appreciate the responses.