Out with the old:
In with the new: I am not sure if many of you know this, but Adventure Trailers now does complete vehicle modifications. My schedule was getting tight for Mongolia, so the boys at AT installed the diffs. We also had some help from a LR guru (who works at RoverTechs in Scottsdale) Steven. Everyone did a great job, and I learned a lot. Mostly how easy LRs are to work on, once you know a few tricks.
Come to find out, the rear had just been serviced (before I bought the truck), and the bearings and seals all looked great.
We spent a lot of time cleaning the housing and gasket surface. Really Right Stuff put is all back together
The new diffs, from Bill at Great Basin. I have had these for months, and just now was able to install them. The pattern looked good and the 3.90 gears are actually stronger than stock (bigger pinion, etc.).
They use a bronze pad that runs tight against the ring and helps protect it from deflection.
Expedition Exchange sells a set of high-quality and longer brake lines. These lines also expand less under braking pressure. We installed these front and rear, along with all new LR Genuine pads.
Installing the front diff. Particular care is required with the arb air line as you slide the third member into the housing.