Operation and maintenance manual

Section 130-0010
Drivelines - Front Drivelines
SM 1378 Rev 2 8-03
2
REMOVAL
Numbers in parentheses refer to Fig. 1.
Note: Extra care should be taken when handling
drivelines since carelessness can result in premature
failure of the components. Chips, dents, burrs, or any
other deformity of universal joints will prevent accurate
mating. This will cause misalignment which is
accompanied by vibration and excessive wear.
WARNINGS
To prevent personal injury and property
damage, be sure wheel chocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
To prevent serious injury or death, DO
NOT go under the vehicle when the engine is
running. Rotating shafts can be dangerous.
You can snag clothes, skin, hair, hands, etc..
1. Position the vehicle in a level work area, apply the
parking brake and switch off the engine. Depress the
brake pedal continuously to relieve any pressure in the
braking circuit. Turn the steering wheel several times to
relieve any pressure in the steering circuit.
2. Block all road wheels and place the battery master
switch in the off position.
3. Remove mounting hardware securing insulation
quilts under the fenders to allow access to driveline
assembly (1). Remove insulation quilts.
Note: Access to driveline assembly (1) can be
obtained from underneath the vehicle.
4. Remove mounting hardware securing guard bracket
(13) over driveline assembly (1) and at the
transmission. Remove guard bracket (13).
5. Match mark universal joints and their mating
surfaces to ensure correct mating alignment when
installing driveline assembly (1).
6. Support driveline (1) with suitable lifting equipment
and remove capscrews (4) securing universal joints
to their mating components and remove driveline
assembly (1). If necessary tap driveline assembly (1)
from its mating components with a soft faced hammer.
Note: Access to driveline assemblies (2 & 3) can be
obtained from underneath the vehicle.
7. Match mark universal joints and their mating
surfaces to ensure correct mating alignment when
installing driveline assemblies (2 & 3).
8. Support driveline (2) with suitable lifting equipment
and remove capscrews (5) securing universal joints
to their mating components and remove driveline
assembly (2). If necessary tap driveline assembly (2)
from its mating components with a soft faced hammer.
9. Support driveline (3) with suitable lifting equipment
and remove capscrews (6) securing universal joints
to their mating components and remove driveline
assembly (3). If necessary tap driveline assembly (3)
from its mating components with a soft faced hammer.
DISASSEMBLY
Universal Joint
Numbers in parentheses refer to Fig. 1.
1. Place the yoke end of driveline assembly (1) in a
soft jawed vice, clamping on the tube of shaft.
Note: Do not distort the tube with excessive grip.
2. Remove screws (7) and universal joint from driveline
assembly (1).
3. Place the shaft end of driveline assembly (1) in a
soft jawed vice.
4. Remove screws (7) and universal joint from driveline
assembly (1).
5. Repeat steps 1 to 4 for drivelines (2 & 3).
INSPECTION
1. Clean all metal parts in a suitable solvent, and dry
all parts with compressed air.
2. Inspect splines of shaft and yoke for nicks, burrs
and excessive wear. Replace if wear is excessive or
splines are nicked. Burrs may be removed with a fine
file or medium India stone.
3. Check the surfaces of the components that universal
joints mate against for parallelism. Refer to Fig. 2.
4. Check condition of mounting capscrews and replace
if required.