Suspension; Transfer Case; Speedometer Adapter; Body Lubrication - Chevrolet 10 1971 Series Chassis Service Manual

LUBRICATION 0-14
or if not available use Automatic Transmission Fluid—
DEXRON® or equivalent required to bring level to full
mark on filler cap dipstick,

SUSPENSION

Certain driving conditions such as
CAUTION:
dust storms and frequent driving on dusty roads
necessitate more frequent lubrication periods.
Maintain correct front end alignment to provide easy
steering, longer tire life, and driving stability.
STEERING LINKAGE A N D FRONT SUSPENSION
Check control arm bushings and ball joints for wear.
Lubricate tie rods, upper and lower control arms, and
ball joints at fittings with water resistant EP chassis
grease which meets General Motors Specification #GM
6031M every 6,000 miles.
Ball joints must be at +10°F. or more
NOTE:
before lubricating,
REAR SUSPENSION
Keep spring to axle U bolts and shackle bolts properly
tightened. Check U bolt nuts after the first 1,000 miles
of operation if the U bolt or U bolt nuts are changed in
service.
" U" Bolt Torques—Front
Model
KA
PA (200-300)
CA-PA-100
CA 200-300
" U" Bolt Torques— Rear
CA-PA 100
CA-200
CA-310
CA-314
KA-100
KA-200
PA-200
PA-300
FOUR WHEEL DRIVE
Most lubrication recommendations and procedures for
4 wheel drive-equipped trucks are the same for corre­
sponding components of conventional drive trucks. Only
the front axle, including the differential, the transfer
case, which transmits power from the transmission to
either front or rear axles, and associated linkage points
and air vents require special procedures.
FRONT AXLE
The front axle should be checked every 6,000 miles and
refilled with S.A.E. 90 "GL-5" gear lubricant when nec­
essary. With the differential at operating temperature,
Torque in
Diameter
Ft. Lbs.
5/8" 115-150
9/16"
70-80
1/2"
40-50
9/16"
90-125
3/4" 175-250
3/4"
175-250
5/8"
125-175
5/8" 125-175
9/16" 105-130
5/8" 125-175
5/8" 125-175
5/8" 125-175
fill to the level of filler plug hole. If differential is cold,
fill to level of 1/2" below the filler plug hole. Capacity:
5 pt.
Air Vent Hose
Check vent hose for kinks and proper installation every
6000 miles.

TRANSFER CASE

Check the transfer case level every 6,000 miles and, if
necessary, add lubricant to bring to the level of the filler
plug hole. Use SAE " GL-5" gear lubricant, and follow
the " Gear Lubricant Viscosity Table" for proper vis­
cosity gear lubricant to be used during vehicle operation.
CONTROL LEVER A N D LINKAGE
Since no grease fitting is provided in the control lever
it is necessary to brush or spray engine oil on the lever
pivot point and on all exposed control linkage every 6,000
miles.

SPEEDOMETER ADAPTER

On vehicles so equipped, lubricate adapter at fitting
with water resistant EP chassis grease which meets
General Motors Specification #GM 6031M every 6,000
miles.
TACHOM ETER-M ECHANICAL
Lubricate drive cable with SAE 90 multi-purpose gear
lube every 6,000 miles.

BODY LUBRICATION

Normal use of a truck causes metal-to-metal move­
ment at certain points in the cab body. Noise, wear and
improper operation at these points will result when a
protective film of lubricant is not provided.
For exposed surfaces, such as door checks, door lock
bolts, lock striker plates, dovetail bumper wedges, etc.,
apply a thin film of light engine oil.
Where oil holes are provided in body parts a dripless
oil can be safely used, but any lubricant should be used
sparingly, and after application all excess should be
carefully wiped off.
The seat adjusters and seat track, ordinarily over­
looked, should be lubricated with water resistant EP
chassis grease which meets General Motors Specifica­
tion #GM 6031M.
There are other points on bodies which may occas­
ionally require lubrication and which are difficult to
service. Window regulators and controls are confined
in the space between the upholstery and the outside door
panel. Easy access to the working parts may be made by
removing the trim. Door weatherstrips and rubber hood
bumpers should be lightly coated with a rubber lubricant.
EXTENDED VEHICLE STORAGE
If you plan to store your truck over an extended period
of time, certain steps should be taken to give it maximum
protection. It is recommended that you write the Chev­
rolet Motor Division, General Motors Corporation, Owner
Relations Dept., Detroit, Michigan 48202, for detailed in­
structions on how to prepare your truck for storage.
10-30 CHEVROLET TRUCK SERVICE MANUAL