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3-1 6
1977 PONTIAC SERVICE M A N U A L
INFLATE TIRES TO RECOMMENDED
PRESSURE
I
ROAD TEST VEHICLE ON LEVEL
UNCROWNED ROAD I N
BOTH DIRECTIONS
SlDE TO SlDE A N D
LEAD CORRECTED
I F ROUGHNESS RESULTS,
REPLACE TIRES.
ORIGINAL POSITION
REPLACE THE TIRE YOU JUST
TO REAR A N D PUT REAR TlRE ON
I
LEAD REMAINS
INSTALL A KNOWN GOOD TlRE I N
PLACE OF FRONT LEAD SlDE TIRE.
I
I
L E A D REMAINS
INSTALL A KNOWN GOOD TlRE IN
PLACE OF OTHER FRONT TIRE.
I
,REPLACE TlRE
I
L E A D REMAINS
KNOWN GOOD TIRES ARE NOT GOOD
OR STEERING GEAR IS CREATING
LEAD, ADJUST CROSS CASTER SO
THAT LEAD SlDE IS 1" MORE
POSITIVE THAN OTHER SIDE.
Fig. 3-1 5 Lead Diagnosis
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