About 1 hour after "cleaning" the trucks (about noon on the second day), Iker (Silver FZJ71) says on the radio that his truck is making a funny noise from the Transfer Case. Fernando and I stopped the convoy and walked back to Iker's truck to assess the situation.
We asked Iker to move the truck back and forth for a few feet so we could listen to the noise. We quickly realized that one of the bearings that holds the pinion on the rear axle had failed and the yoke moved up and down as Iker moved back and forth.
As you can imagine, this is not good news when you are in the middle of the jungle. Of the 70 mile trip (one way), we have only completed about 15 miles so far in two days.
Luckily, all the trucks in the trip had Full Floating rear axles and we decided to remove the rear drive shaft, remove the axle shafts and link Fernando's FJ40 to Iker's FZJ71 to aid with traction as Iker's truck will become a 4x2 vehicle until we can diagnose and repair the failure. Robert had previously made some hub covers in case of axle failure so the assembly could be protected from major objects entering the axle when removing the rear axle shafts.
A team worked in removing the right axle shaft, another team worked in removing the left axle shaft, and another in removing the drive shaft.