Hi, I have recently bought a 99 WJ 4.7 that requires a bit of work doing to it. Having a new front to rear brake pipe fitted on Monday as it is showing signs of the usual corrosion fault at the rear clip. I have also got a leak from the rear pinion seal, but am trying to work out which axle I have, and where to get said seal without having to pay the 38 pounds quoted by the stealership. Any help would be appreciated, many thanks