Somewhere in here I read that you remove the fasteners where the upper part of the return line bolts to the turbo and turn it, I think, 90 degrees to get a little clearance and loosen it up some. Then you install a hose clamp at the lower end of the bottom section of return line and use the hose clamp to "hammer against" to drive the lower part up for clearance to remove it. Replace the o-rings and the grommet at the oil pan and put everything back together and you should be back in business.

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Jim