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REAR SUSPENSION AND DRIVE LINE 4-6
Fig. 10—Toe-in Adjusting Shim Location (Corvette)
Toe-in
Wheel toe-in is adjusted by inserting shims of varying
thickness inside the frame side member on both sides
of the torque arm pivot bushing (fig. 10). Shims are
available in thicknesses of 1/64", 1/32", 1/8" and 1/4".
To adjust toe-in, remove torque arm pivot bolt; then
position torque arm to obtain specified toe-in. Shim gap
toward vehicle centerline between torque arm bushing
and frame side inner wall.
NOTE: Do not use thicker shim than necessary,
and do not use undue force when shimming inner
side of torque arm - to do so may cause toe
setting to change.
Shim outboard gap as necessary to obtain solid stack-
up between torque arm bushing and inner wall of frame
side member. After correct shim stack has been se-
lected, install pivot bolt and hardened washers (fig. 10) -
making sure that all shims are retained - torque nut to
specifications and install cotter pin. If specified torque
does not permit cotter pin insertion, tighten nut to next
flat.
WHEEL BEARING ADJUSTMENT (CORVETTE)
inspection
The tapered-roller spindle bearings should have end
play of .001" to .008". During inspection, check end
play and, when necessary, adjust as outlined in this
section.
1. Raise rear of vehicle until wheels clear ground.
2. Disengage bolt lock tabs and disconnect outboard end
of axle drive shaft from wheel spindle flange.
3. Mark camber cam in relation to bracket. Loosen and
turn camber bolt until strut rod forces control arm
outward. Position loose end of axle drive shaft to
one side for access to spindle.
4. Remove wheel and tire assembly. Mount dial in-
dicator (Tool J-8001) on torque arm or adjacent
surface and rest pointer on flange or spindle end
(fig. H).
5. Grasp brake disc and move axially (in and out) while
reading movement on dial indicator. If end movement
is within the .001" to .008" limit, bearings do not
require adjustment. If not within .001" to .008"
limit, record reading for future reference and adjust
bearings as outlined below.
Adjustment
1. Apply parking brake to prevent spindle from turning
and remove cotter pin and nut from spindle.
2. Release parking brake and remove drive spindle
flange from splined end of spindle.
3. Remove brake caliper and brake disc as outlined in
Section 5.
4. Install Thread Protector J-21859-2 over spindle
threads; then remove drive spindle from spindle
support, using Tool J-22602 as shown in Figure 12.
CAUTION: When using Tool J-22601 to remove
drive spindle, make sure puller plate is posi-
Fig. 11—Checking Wheel Bearing Adjustment (Corvette)
Fig. 12—Removing Drive Spindle from Support (Corvette)
CHEVROLET CHASSIS SERVICE MANUAL
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