Trying to clear up the last of the oil leaks on on the Caty 936F. It looks like there is a leak at the rear drive shaft yoke,where it slides into the rear differential.I know there is a seal there, but the yoke is a little sloppy,up and down on the pinion shaft.I know this is not normal,but is it unusual?(13000 hrs) More importantly,would the pinion splines be worn also, or is the yoke a little softer,and just the yoke need to be replaced.OR do I just replace the seal and run it.Just dont want to ruin the pinion if it can be saved!
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