Chevrolet 1977 light duty truck Service Manual page 8

F U L L T I M E ( 4 X 4 )
A U T O M A T I C T R A N S M I S S IO N
1. T R A N S F E R C A S E IN N E U T R A L
2. T R A N S M I S S I O N IN P A R K
3. M A X I M U M S P E E D 3 5 MPH
4. M A X I M U M D I S T A N C E 5 0 M I L E S
N O T E : F o r distances o v e r 5 0 miles, d i s c o n n e c t rear p r o p s h a f t at
rear axle c a r r ie r an d secure in safe p o s i ti o n .
C A U T I O N : W h e n t o w i n g a v e h ic le in t h is p o s it io n , th e s te e r in g w h e e l s h o u ld be s e c u re d t o k e e p th e f r o n t w h e e ls in a s t r a ig h t a h e a d p o s it io n .
F U L L T I M E (4 X 4)
1. T R A N S F E R C A S E IN N E U T R A L
2. T R A N S M I S S I O N IN P A R K
3. M A X I M U M S P E E D 3 5 M P H
4. M A X I M U M D I S T A N C E 5 0 M I L E S
F o r distances ovei 5 0 miles, d i s c o n n e c t f r o n t p r o p s h a f t at
N O T E :
f r o n t ax le c a rr ie r a nd secuie in safe p o s i t i o n .
F U L L T I M E ( 4 X 4)
1. T R A N S F E R C A S E IN N E U T R A L
2. T R A N S M I S S I O N IN P A R K
N O T E : D o n o t exceed speed as per S tat e laws f o r t o w i n g vehicles.
F our W h e e l D riv e Tru cks
It is recom m ended that the truck be towed with the
fron t wheels off the ground. T he truck can be towed,
however, with the rear wheels off the ground if there is
d a m ag e in the rear wheel area. Refer to Chart on "Tips
for Towing Four Wheel Drive Vehicles".
STEEL T U B IN G R E P LACEM ENT
In the event that replacem ent o f steel tubing is
required on brake line, fuel line, evaporative emission,
and transmission cooling lines, only the recom m ended
steel replacem ent tubing should be used.
Only special steel tubing should be used to replace
brake lines. T hat is, a double layer and brazed steel
tubing m eeting G.M . Specification 123M. Further, any
oth e r steel tubing should be replaced only with the
released steel tubing or
co ndition should copper or alum inum tubing be used to
replace steel tubing. Those
satisfactory fatigue durability
vehicle vibrations.
All steel tubing should be flared using the upset
(double lap) flare method.
VEH IC LE LO ADING
Vehicle loading must be controlled so weights do not
exceed the numbers shown on the Vehicle Identification
T I P S F O R T O W I N G F O U R W H E E L D R I V E V E H I C L E S
F R O N T W H E E L S O F F T H E G R O U N D
R E A R W H E E L S O F F T H E G R O U N D
A L L F O U R W H E E L S O N G R O U N D
Keyliner Towing Chart O A -2
its equivalent. U n der no
materials do not have
to withstand normal
P A R T T I M E (4 X 4)
M A N U A L T R A N S M I S S I O N
1. T R A N S F E R C A S E IN 2 H
2. T R A N S M I S S I O N IN N E U T R A L
3. M A X I M U M S P E E D 3 5 M PH
4. M A X I M U M D I S T A N C E 5 0 M I L E S
N O T E : F o r dis tances o ver 5 0 miles, d is c o n n e c t the rear p r o p s h a f t
at rear ax le c a r r ie r and secure in safe p o s i ti o n .
P A R T T I M E (4 X 4)
1. T R A N S F E R C A S E IN 2 H
2. T R A N S M I S S I O N IN N E U T R A L
3. M A X I M U M S P E E D 3 5 MPH
4. M A X I M U M D I S T A N C E 5 0 M I L E S
For distances over 5 0 miles, d is c o n n e c t the f r o n t p r o p s h a f t
N O T E :
at f r o n t axle c a r r ie r and secure in safe p o s i ti o n .
P A R T T I M E (4 X 4)
1. T R A N S F E R C A S E IN 2 H
2. T R A N S M I S S I O N IN N E U T R A L
3. M A X I M U M SP E E D 3 5 M PH
4. M A X I M U M D I S T A N C E 5 0 M I L E S
For speeds or distances greater than above, b o t h p r o p s h a ft s
N O T E :
m u s t be d i s c o n n e c t e d at th e axle c a r r ie r end an d secured in a safe
p o s i ti o n . It is r e c o m m e n d e d t h a t b o t h p r o p s h a ft s be re m o v e d and
st o re d in the ve hicle.
N O T E : Do n o t excee d speeds as per State laws f o r t o w i n g vehicles.
LOADED— M A X IM U M GVW R: 6200-LBS.
FRONT GAWR: 3250 LBS.
* F r o n t C u r b 2 2 6 1 lb s .
F ro n t C a r g o &
Pass. L o a d 4 5 0 lb s .
2 7 1 1 lb s .
TOTAL W EIGHT AT GROUND: 6200 lbs.
* C u r b w e ig h t e q u a ls th e w e ig h t o f th e v e h ic le
p a s s e n g e r o r c a r g o , b u t in c lu d i n g f u e l a n d c o o la n t .
Fig. 0A-4--Typical Vehicle Loaded Condition
N u m b e r and Rating Plate for the vehicle.
A typical example o f a truck in a loaded condition is
shown in Figure OA-4. N ote that the axle or GVW
capabilities are not exceeded.
REAR GAWR: 3582 LBS.
* R e a r C u r b 1 5 4 9 lb s .
R e a r C a r g o &
Pass. L o a d 1 9 4 0 lb s .
3 4 8 9 lb s .
w it h o u t d r iv e r ,