Chevrolet 1973 Overhaul Manual page 38

RING GEAR SIDE
Thickness of Tool J-22779
required
.250"
gear into
pinion
TO M AIN TAIN PROPER BACKLASH (.005" - .008" ), ring gear is
moved away from pinion by subtracting .010" shims from ring gear
side and adding .010" shims to other side
TO OBTAIN PROPER PRELOAD
+ .004"
to each side.
Shim dimension required
.244"
for ring gear side
EXAMPLE
to force ring
contact with
on side bearings, add .004" shims
Fig. 7A—D eterm ing Side Bearing Shim Requirem ents
REAR AXLE D IFFERENTIAL CARRIER
OPPOSITE SIDE
Combined total of
Service Spacer
(A )
Service Shim (B )
Feeler Gauge (C )
Shim dimension required
for opposite side
4-7
.265"
+ .010"
.275"
+ .004"
.279"
OVERHAUL MANUAL