Chevrolet 70 1969 Series, Shop Manual

Page: 579 / 913

REAR AXLE 4-24
Figure 10— O v e r h a u l O p e ratio n s
am ine bearing for roughness, dam age, defects or wear.
N o te condition of bearing cups and cages and replace
bearing if dam aged, or if any of the conditions previously
noted are evident.
GEARS
Exam ine drive gear and drive pinion, differential pin­
ions and differential side gears carefully, for dam aged
teeth, worn spots in surface hardening and distortion.
Check radial clearances between differential side gears
and differential case. Check fit of differential pinions on
spider. Refer to “ Specifications” at end of this publica­
tion for new limits, fits and tolerances.
DIFFERENTIAL CASE
Inspect differential case assembly for cracks, distortion
or dam age, if case is in good condition, thoroughly clean
case and cover; then assemble case with bolts and m ount
in lathe centers or “ V ” block stand. If lathe is not avail­
able, install differential side bearings and m ount case in
differential carrier. Install dial indicator (J-8001) and
check differential case run-out.
Differential case with drive gear installed is checked in
the sam e m anner, except that dial indicator (J-8001) read­
ing must be taken at gear (fig. 12) instead of at case
flange.
AXLE SHAFTS
Exam ine splined end of axle shaft for twisted or
cracked splines, twisted shaft, and worn dowel holes in
flange. Install new shafts if necessary.
Install axle shaft assembly in lathe centers and check
shaft run-out with dial indicator, if run-out exceeds limits,
A — DIFFERENTIAL SIDE GEAR
AN D WASHER
B— DIFFERENTIAL SPIDER, WASHER,
AN D GEARS
C— DIFFERENTIAL BEARING REMOVAL
T -43 88
Figure 11— O verhaul Operations
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK SHO P M A N UA L