TRUCK SERVICE MANUAL
When the locking hubs are engaged in "4 x 4" and
transfer case is in 4W, full power is transmitted to both
wheels. When both front wheels are disengaged or in "4 x 2"
position and transfer case in 2W, shafts and differential will
remain idle, overcoming any unnecessary wear. For the first
320 km (200 miles) operate your new vehicle with the locking
hubs in "4 x 4" position to assist in initial break-in of the front
driving axle. Place transfer case control in 2wheel drive
Fig.2. Dial Control
Always shift transfer case to 2H before attempting to
disengage the locking hubs.
DO NOT DRIVE unless controls on both hubs are set the
To avoid excessive torque loads on the rear axle, DO NOT
drive vehicle in low range of transfer case with locking hubs
set in "4 x 2" position.
When reassembling the locking hub, lubricate as follows:
Lubricate dial, seal, splines, threads, ring and bearing with IH
251 HEP grease.
This locking hub is servied in two major assemblies, namely,
a clutch half and cap assembly. Since all individual
components are not provided, refer to the Scout Parts Catalog
Bend lock tabs out of way.
Remove six (6) bolts.
Remove cap assy.
Remove snap ring from axle shaft.
Remove clutch assy.
Wipe mounting surfaces clean.
Reverse disassembly procedure using new lock tabs.
A gasket is not used with this assembly; as the clutch
assembly seals automatically with the wheel hub.
Torque hub assembly mounting bolts to 32-40 ft. Ibs. 43-54
CTS-2785 CHAPTER II Page 3
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