Service Replacement (Trac-Lok); Axles Specifications - Jeep 1979 CJ-5 Technical & Service Manual

2F-46 AXLES
TOOL
J-8646-2
TOOL
J-23781-7
J 4 2 3 3 6
Fig. 2F-72 Threading Forcing Screw into Rotating Tool
J 4 2 3 3 7
Fig. 2F-73 Pinion Gear Installation
SERVICE REPLACEMENT
If the Trac-Lok unit must be replaced as an assembly,
replace the unit as follows:
(1) Remove differential bearings and shims. Mark
or tag each bearing and shim pack for assembly
reference.
(2) Remove ring gear from case.
(3) Install original ring gear on replacement differ-
ential assembly. Be sure gear flange on replacement
case is free of nicks or burrs.
(4) Inspect shims and bearings which were re-
moved. If shims and bearings are worn or damaged,
J-23781
J 4 2 3 3 8
Fig. 2F-74 Pinion Gear Thrust Washer Installation
J 4 2 3 3 9
Fig. 2F-75 Pinion Mate Shaft Installation
replace them. Be sure shims and bearings are used on
same sides of replacement case as on old case.
(5) Install shims and differential bearings. Use step
plate on bottom bearing to protect bearing from damage
during installation of upper bearing. Seat bearings, us-
ing bearing driver tool.
(6) Lubricate differential bearings with Trac-Lok
lubricant or equivalent and install differential in axle
housing.
(7) Follow service procedures previously outlined
for conventional axles to complete differential and axle
assembly servicing.
SPECIFICATIONS •
Axle Specifications
Model 30 Front Axle U S A Metric
Differential Bearing Preload 015 in 0.38 mm
Differential Side Gear-to-Case Clearance . .000-.006 in 0.000-0.15 mm
Ring Gear .005-.009 in 0.12-0.22 mm
Pinion Bearing Break-Away Preload
Original Bearings 15-25 in-lbs. 2-3 N-m
New Bearings . . . 20-40 in-lbs. 2-5 N-m