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E
ntry
F
Subtract entry "E" from
entry "D' 1 and record in col-
umn 2 .
Entry
A
Distance from the flat sur-
face surrounding the idler
lever ball stud nuts to level
surface .
Entry
Distance from lower right
B
hand control arm front
pivot bolt to level surface .
Entry
C
Subtract entry "B" from
entry "A" and record in
column 2 .
Entry
Subtract entry "C' 1 from
G
entry "F" and record in
Column 2 .
Col
1
Col
2
*If entry "G" is .125 1 ' or greater, add two
hardened steel washers under the idler lever
pivot as shown in figure C .
Otherwise, the
intermediate rod parallelism is acceptable .
11 . Check
rear
suspension
for
alignment
(Refer to Section 4 of this supplement .
Also
GM Bulletin 76-IM-5A .)
If one side of the vehicle rear suspension
appears to be the primary cause of excessive
toe, use the following procedure for measuring
toe on one side of the vehicle . This will assist
LOWER
CONTROL ARM `
FRONT PIVOT BOLT
Figure B-Measuring Relay Rod Levelness
FRONT SUSPENSION 3A-3
INTERMEDIATE ROD IDLER LEVER
FRONT AXLE CROSSMEMBER
INSTALL TWO HARDENED
STEEL WASHERS
TOROUE NUT
85-110 Ft-Lbs
A-6185
Figure C-Installing Washer Under Idler Pivot
you
in
determining
which
rear
suspension
component is defective or damaged .
Drive vehicle straight forward onto a
level surface .
Remove wheel covers and outer dust cap.
Place straight edge across face of wheels
as shown in figure D.
Measure distance from straight edge to
frame at front tire and rear tire as
shown .
- Toe should be A = B plus or
minus .0625' 1 .
Add toe shims as required . One toe shim
changes A = B by .125' 1 .
12 . Check
steering
gear
for
adjustment,
binding and' centering .
(Refer to "Trouble
Diagnosis," Section 9, Maintenance Manual X-
7525 .)
13 . Check rear suspension bushings for wear .
(Refer to bulletins 75-TM-23, 75-TM-4.)
TOE SPECIFICATION :
A = B .0625"
LEFT OR RIGHT REAR SUSPENSION
B-1
A~61 8B
Figure D-Measuring Toe on Rear Suspension
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