Pontiac, All (1971-73)
Remove drum. Remove ridge at open end of drum with number 40 grit sandpaper, or equivalent. Adjust suitable measuring tool (J-22364) to diameter of drum, then adjust shoes to fit opposite side of tool. Replace drum, drive vehicle alternately forward and backward, making moderate braking stops, until pedal travel is suitable. As an alternate method, use procedure as described for Buick, adjusting star to the following: Catalina, Bonneville, Grand Ville, back off 30 notches; all others, back off 26 notches.