ST_330_72_1972_Chevrolet_Truck_Chassis_Service_Manual_10_to_30

SECTION IN D EX

1972 SECTION NAME
GENERAL INFORMATION
SERIES 10 through 30 0 AND LUBRICATION
1A HEATER AND
CHEVROLET TRUCK IB AIR CONDITIONING
2
CHASSIS 3 BODY
4
SERVICE MANUAL 5 FRAME
6
FOREWORD 6K FRONT SUSPENSION
6M 4-WHEEL DRIVE
This manual includes procedures for maintenance and 6T REAR SUSPENSION
adjustm ents, minor service operations, and removal and 6Y AND DRIVELINE
installation for components of Chevrolet S eries 10 through 7
30 T rucks. P ro ced u res involving disassem bly and a sse m ­ 8 BRAKES
bly of m ajor components for these vehicles are contained 9
in the 1972 Chevrolet P assen g er C ar and S eries 10-30 10 ENGINE
Truck Overhaul Manual. 11
12 ENGINE COOLING
The Section Index on this page enables the u se r to 13
quickly locate any d esired section. At the beginning of 14 FUEL SYSTEM i
each section containing more than one m ajor subject is a 15 EMISSION CONTROL
Table of Contents, which gives the page number on which SYSTEMS «
each m ajor subject begins. An Index is placed at the ENGINE ELECTRICAL
beginning of each m ajor subject within the section.
CLUTCH AND TRANSMISSION
S um m aries of Special Tools, when required, a re found FUEL TANK AND
at the end of m ajor sections while specifications covering EXHAUST SYSTEM
vehicle components are presented at the re a r of the STEERING
manual.
WHEELS AND TIRES 1
This manual should be kept in a handy place for ready
referen ce. If properly used, it will enable the technician CHASSIS SHEET METAL -j
to b etter serve the owners of Chevrolet built vehicles. ELECTRICAL— BODY
AND CHASSIS -
All information, illustrations and specifications con­ RADIATOR AND GRILLE
tained in th is lite ra tu re a re based on the late st product
information available at the time of publication approval. BUMPERS
The right is reserved to make changes at any time without
notice. ACCESSORIES
SPECIFICATIONS
•••

CHEVROLET MOTOR DIVISION

General Motors Corporation
DETROIT, M IC H IG A N

© 1972 General Motors Corporation Printed in U.S.A.

SECTION 0

GENERAL INFORMATION
AND LUBRICATION

CONTENTS OF THIS SECTION Page

General Information.............................................. ..................... ....................... 0-1
L u b rication ..........................................................................................................0-8

GENERAL INFORMATION

INDEX

Page Page

Model Line U p ................................................................................................... ....0-1 Keys and L o c k s ................................................................................................. 0-3
Truck Model Designation....................................................................................0-1 Emergency S tartin g.......................................................................................... 0-3
Vehicle Identification Number and Rating P la t e .................................... ....0-1 T o w i n g .......................................................................................... ................... 0-3
Engine N u m b e r ....................................................... ........................................ ....0-1 Engine Vehicle A vailab ility ........................ .............................. ................... 0-5
Unit and Serial Number L ocation s................. .................................................0-2 Load Capacity Chart............................. ............................................................ 0-6
Service Parts Identification P la t e ............ ............................................. .......... 0-3

MODEL LINE UP Fourth and Fifth Numbers—
Body Styles
The 10 through 30 S eries Conventional 2- and 4-Wheel
drive and forw ard control tru ck model line-up for 1972 00 - All
consists of the m odels shown in the “ Engine Application” 02 - Flat Face Cowl
Chart in this section. 03 - Cab

TRUCK MODEL DESIGNATION M - Stepside Pickup

A five digit num ber preceded by two le tte rs is 06 - Suburban (Panel R ear Doors)
used to designate truck models. For example, vehicle 14 - Utility (Blazer)
CS 10704 would be: Conventional [c], L-6 gasoline en­ 16 - Suburban (Tail - Liftgate)
32 - Motor Home C hassis
gine [S], 3600#-5600# GVW [T), 42”-47M Cab-to-Axle 34 - Fleetside Pickup
35 - Forw ard Control (Steel Step-Van King)
dim ension ^ , Stepside pickup |04] , as listed below. 42 - Forw ard Control C hassis
First Letter—Chassis 55 - Forw ard Control (Aluminum Step-Van King)

[Cl - Conventional (Conventional Cab, Suburban) VEHICLE IDENTIFICATION NUMBER AND
K - Four-Wheel Drive RATING PLATE
P - Forward Control
A combination vehicle identification number and rating
Second Letter—Engine plate used on all models (fig. 1) is located on the door
p illar, except on School Bus, Flat Face Cowl, and some
A - All Forw ard Control models (motor home). On School Bus
E - V-8 Gasoline and Flat Face Cowl m odels the plate is attached to the
[s] - L-6 Gasoline a ir intake plenum panel. On Forw ard Control m odels
(P10, P20, P30 except P30 Motor Home Chassis) it is
First Number—G V W Range attached to the dash and toe panel.

0 - All The vehicle identification num ber stam ped on the plate
decodes into the inform ation shown in Figure 2.
\l] - 3900-5800#
ENGINE NUMBER
2 - 5200-7500#
3 - 6600-14000# The engine number indicates manufacturing plant,
month and day of manufacture, and transm ission type. A
Second and Third Numbers— typical engine num ber would be F1210TFA, which would
Cab-To-Axle Dimension breakdown thus:

00 - All F - Manufacturing Plant (F-Flint, T-Tonawanda)
05 - 30-35 12 - Month of m anufacture (December)
0 - 42-47’ 10 - Day of m anufacture (tenth)
08 - 48-53' T - Truck
09 - 54-59’ FA - T ransm ission and engine type
10 - 60-65

10-30 CHEVROLET TRUCK SERVICE MANUAL

GENERAL INFORMATION 0-2

oo GENERAL MOTORS CORPORATION porting product failu res in any way, the location of the
various unit numbers have been indicated. These unit
WARRANTY MAY BE VOIDED IF WEIGHT num bers and their prefix or suffix are necessary on these
EXCEEDS ANY OF THE RATINGS SHOWN. papers for various reasons - such as accounting, follow-
up on production, etc.
GRO SS VEHICLE WEIGHT INCLUDES WEIGHT OF
BASE TRUCK, ALL ADDED EQUIPMENT, DRIVER The prefixes on certain units identify the plant in
which the unit was manufactured and thereby perm its
AND PASSENGERS, AND ALL PROPERTY LOADED p ro p er follow-up of the plant involved to get corrections
INTO TRUCK. made when necessary.

PREFER TO O W NER'S MANUAL FOR EQUIP­ Always include the prefix in the number.
MENT REQUIRED FOR INTERMEDIATE OR Axles
MAXIM UM GVW RATINGS, AND FOR OTHER
LOADING INFORMATION, INCLUDING TIRE • S eries 10 R ear Axle S erial Number Located at the
INFLATION. Bottom Flange of C a rrie r Housing.

RATING IN POUNDS • Series 20-30 Rear Axle Located at the Forward
Upper Surface of C arrier.
GROSS VEHICLE WEIGHT AS M A N U - * M AXIM UM
FOR THIS VEHICLE FACTURED CAPABILITY Transmissions

MAXIMUM FRONT END • 3-Speed T ransm ission Unit Number Located on
WEIGHT AT GROUND Lower Left Side of Case Adjacent to R ear of Cover.

MAXIMUM REAR END • 4-Speed T ransm ission Unit Number Stamped on
WEIGHT AT GROUND R ear of Case, Above Output.

VEH ICLE IDENTIFICATION NO. • Powerglide and Turbo H ydra-M atic 350 T ra n sm is­
sion Unit Number Located on Right R ear V ertical
Oo Surface of Oil Pan.

Fig. 1—Vehicle Identification Number and Rating • The Turbo Hydra-M atic T ransm ission 400 Serial
Plate Information Number is Located on the Light Blue P late on the
Right Side of the T ransm ission.
UNIT AND SERIAL NUMBER LOCATIONS
Engines
For the convenience of service technicians and engi­
n ee rs when w riting up certain business p apers such as • 6 -Cylinder Engine Unit Number Located on Pad at
W arranty Reports, Product Information Reports, or re ­ Right Hand Side of Cylinder Block at R ear of
D istributor.
ENGINE
DIVISION DESIGNATION • 8-C ylinder Engine Unit Number Located on Pad at
C = CHEVROLET Front, Right Hand Side of Cylinder Block.

MODEL YEAR Delcotrons
2= 1972 for all
Series. Delcotron Unit Serial Number--Top of Rear Housing.

SEQUENTIAL NUMBER Batteries

C=2 WHEEL DRIVE B attery Code Number Located on Cell Cover Top of
Battery.
Starters

S tarter Serial Number and Production Date Stamped
on Outer Case, Toward Rear.

SERVICE PARTS IDENTIFICATION PLATE

The Chevrolet Truck Service P arts Identification Plate
(fig. 3) is provided on all Truck m odels. On m ost s e rie s

K=4 WHEEL DRIVE

P=FORWARD CONTROL ASSEMBLY PLANT S E R V I C E P A R T S I D E N T I F I C A T I O N ___________

w/ baseB M H I si H H H H

BO D Y STYLE A-Lakewood V-GM Truck-Pontiac NOTE: V.I.N.—VEHICLE IDENTIFICATION NUMBER
2-Flat face cowl R-Arlington
B-Baltimore TH E S P E C IA L EQ UIPM EN T LIST E D BELO W H AS BEEN IN ST A LL ED ON
or Forward Control T H IS V E H IC L E . FOR P R O P E R ID E N TIFIC A TIO N OF R E P L A C E M E N T
C-Southgate S-St. Louis P A R T S B E S U R E TO S P E C IF Y THE A P P L IC A B L E OPTION N U M B ER S.

chassis only D ESC R IPTIO N

3-Cab-chassis D-Doraville T-Tarrytown

F-Flint U-Lordstown
4-Cab and pickup box G-Framingham W-Willow Run
5-Forward Control
J-Janesville Y-Wilmington
chassis only
K-Leeds Z-Fremont
(Steel-Aluminum Body) L-Van Nuys 1-Oshawa

6-Suburban body N-Norwood 2-Ste. Therese

7-Forward Control

(Rec. Vehicle Chassis) IMPORTANT: RETAIN THIS PLATE A S A PERMANENT RECORD
Fig. 3—Service Parts Identification Plate
8-Utility (Blazer)

Fig. 2—V ehicle Identification No.

10-30 CHEVROLET TRUCK SERVICE MANUAL