The star wheel is at about 1:30 on the left rear, 10:30 on the right if I remember correctly. Just jack up the rear wheel after removing one lug bolt, and slowly turn it while peering in with a flashlight. Works like any drum brake -- turn one way to tighten, the other to loosen (I don't remember which is which, it's opposite side to side, too!).

tighten shoes until they drag all the way around, then loosen 2-3 clicks. They may scrape a bit, but should not restrict wheel rotation.

Adjust cable to give brake application sufficient to prevent hand turning the wheels when the pedal has gone down three or four clicks. From that point, only adjust the shoes to restore correct application.

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!