Front, either at the centerline or 45 degrees down, I think. Don't remember the exact instructions in the CD. Don't do alignments myself, beyond measuring tie rods when I replace them and setting them to the same length as the old one, or "seat of the pants" ones to get the car down to the shop.

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!