Changed the engine oil, filter and the IRD oil. Not a very hard job. I had no record of the last engine oil change so it seemed like a good idea to do it now and keep records. Engine oil had no surprises, the IRD oil however did show some scary symptoms. The oil was silvery and had some small metal parts in it. I guess the parts are from broken spacers from inside the IRD. Not good.
Since the oil was out I was curious about the state of the pinion. I loosened the nuts on the drive shaft but had trouble removing it from the flange. To get it loose I attached a hose clamp to the CV joint on the drive shaft and carefully tapped it loose.
When the pinion was finally loose I could not see any visible damage to the gears or excessive play in any of the gears or bearings accessible. I reassembled the IRD and drive shaft and filled up the IRD with oil while following the instructions in the Haynes manual. To be safe the next plan is to get hold of a new IRD, preferably a newer unit with the newer/better ratios.
Mileage:
154909
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