Just picked up a 04 Durango 5.7 AWD on Christmas Eve from the dealer. Noticed the seal where the drive shaft comes into the rear diff is leaking. Wondering if anyone can give me a little instruction on where to start or tips with replacing the seal. Also, If anyone has a PDF of a service manual that would be greatly appretiated. Waiting on one to come from amazon, would love to change the seal today though. Thanks everyone!