Hummer H1 Service Manual page 578

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7. Clean part with solvent.
8. Inspect shaft, slip yokes and U-joints for wear or damage.
9. Replace worn U-joints. Refer to procedure in this section.
10. Install shield on shaft.
11. Start new center bearing on shaft.
STANDARD
BEARING
PULLER
FRONT
PROPELLER
SHAFT
SHOULDER
Figure 9-108: Center Bearing Removal/Installation
12. Install retainer on center bearing.
13. Press center bearing on front propeller shaft until seated
against shoulder. Ensure flange on center bearing faces up.
14. Install dust caps on yokes.
15. Coat shaft splines with chassis grease.
NOTE: Be sure grease fittings on dust caps are aligned with
wide splines in slip yokes.
16. Align and assemble shaft, slip yokes, and dust caps.
17. Lubricate U-joints and slip yokes with chassis grease.
Front Propshaft Installation
1. Position front shaft on engine mount, axle yoke and trans-
fer case yoke.
2. Connect transfer case shift rod to transfer case range lever.
3. Connect front shaft to transfer case yoke with U-bolts and
nuts. Tighten nuts to 13-18 lb-ft (18-24 N•m).
4. Connect front shaft to front axle yoke with strap and bolts.
Tighten bolts to 13-18 lb-ft (18-24 N•m).
5. Secure center bearing to engine mount with bolts,
washers, and locknuts. Tighten bolts to 60 lb-ft (81 N•m).
6. Lubricate propeller shaft U-joints and slip yokes with
chassis grease.
05745159
REAR PROPELLER SHAFT SERVICE
Removal
1.
2.
RETAINER
CENTER
BEARING
SHIELD
3.
Installation
1.
2.
3.
Axles, Suspension, and Frame
Remove U-bolts, attaching rear shaft to rear axle yoke
(Figure 9-109).
Slide shaft slip yoke out of transfer case extension housing
and remove shaft from vehicle.
TRANSFER CASE
EXTENSION
HOUSING
FRONT YOKE
AND U-JOINT
REAR PROPELLER
SHAFT
REAR
U-JOINT REAR AXLE
Figure 9-109: Rear Propeller Shaft Attachment
Inspect condition of U-joint cross and bearings at each end
of shaft (Figure 9-110). Replace either U-joint if worn,
loose, seized. Refer to U-joint replacement in this section.
BEARING
GREASE FITTING
Figure 9-110: U-joint Components (Typical)
Slide propeller shaft slip yoke into extension housing.
Connect shaft to axle yoke with U-bolts, lockwashers and
nuts. Tighten U-bolt nuts to 13-18 lb-ft (18-24 N•m)
Lubricate propeller shaft U-joints.
9-41
U-BOLT
WASHER
NUT
YOKE
SNAP RING
REAR SHAFT
YOKE
CROSS
BEARING
SNAP RING
CROSS