Replace the windshield gaskets while you're at it, too -- this is why the floor pan rusted in the first place. You never see the water, it runs down under the sound deadening on the floor pan and sits there.....

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!