Working on Yanmar today. LH front just holding on by steering arm. For some reason they gutted they internal working components of the 4WD drive. By doing so they removed one the main support bearing [6013-2RS] leaving only the top 6204 bearing which was quickly destroyed. Strange though none of the broken parts of the upper bearing were to found. Destroyed three chisels getting out remaining outer bearing shell.
This was the condition this machine was sold in. And the new owner thought it was just a strip spline shaft.
What gets me more is the fact the tech thought SAE 5/16-18 screws replaced M10-1.50 metric bolts.
Come on folks SAE screws DON"T replace Metric screws or vise versa. Ran into this twice in less than a month where screw standards were cross up and used anyway.