
4 minute read
BRAKES 6A GASOLINE ENGINES 6B TORO-FLOW DIESEL ENGINES 6C SERIES 6V-53 DIESEL ENGINES 6D ENGINE MOUNTINGS 6K ENGINE COOLING SYSTEM 6M ENGINE FUEL SYSTEM 6T AIR COMPRESSOR AND GOVERNOR 6Y ENGINE ELECTRICAL
T R U C K S E R I E S
HG-70
HJ-70
HM-70
HV-70
JG-70
JJ-70
JM 70
JV-70
TG-70
TJ-70
TM-70

HM-80
JM-80
TM-80
WM-80
E N G IN E
STD. OPT. CLUTCH
STD. OPT. FR O N T AX L E RE AR AX L E T R A N S M I S S I O N
STD. OPT. STD. OPT. STD. OPT.
DH478 - 12" 13" 13"-2 F070 F090 16121 17121,18121, 16221, 17221, 18221, 19201 540GL 540GD, 541GL, 541GD, 5652 5752C
D637 DH637 14" 14"-2 F070 F090 F120 17221 18221, 19201 5752C 387V
401M 12" 13" 13"-2 F070 F090 16121 17121, 18121, 16221, 17221, 18221, 19201 435GL 435GD, 540GL 540GD, 541GL 541GD, 285V 282V, 5652 5752C
6V-53N - 14" — F070 F090 F120 17221 18221, 19201 5752C -
DH478 — 12" 13" 13"-2 F070 F090 F120 30DSC 34DSC, SLHD 541GL 282V, 5652 5831B Aux. 6041 Aux.
D637 DH637 14" 14"-2 F070 F090 F120 30DSC 34DSC, SLHD 5752 385V, RT510 7041 Aux.
401M 12" 13" 13"-2 F070 F090 F120 30DSC 34DSC, SLHD 541GL 282V, 5652 5831B Aux. 6041 Aux.
6V-53N — 14" 14"-2 F070 F090 F120 30DS€ 34DSC, SLHD 385V 7041 Aux.
DH478 — 12" 13" F070 F090 F-110 16121 18121, 16221, 17221, 18221, 19201 540GL 540GD, 541GL, 541GD, 5652 5752C
D637 DH637 14" 14"-2 F070 F090 F110 17221 18221, 19201 5752C
401M 12’' 13" 13"-2 F070 F090 FI 10 16121 17121, 18121, 16221, 17221, 18221, 19201 435GL 435GD, 540GL, 540GD, 541GL, 541GD, 285V 282V, 5652 5752C
401M 478M 13" 13"-2 14" 14"-2 F070 F090 F120 17121 18121, 17221, 18221, 19201 541GL 541GD, 285V 387V, 282V, 5752C,
401M 478M 13" 13"-2 14" 14"-2 F090 F120 F160 34DSC SLHD, SQHD 5652 401V, 7231A Aux., 6041 Aux., 7041 Aux.
401M 478IVI 13" 13"-2 14" 14"-2 F090 FI 10 17121 18121, 17221, 18221, 19201 541GL 541GD, 285V, 282V, 387V, 5752C
401M 478M 13" 13"-2 14" 14'-2 F090 FI 10 F150 34DSC SLHD, SQHD 5652 7216-3B 6041 Aux.
iv
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK SHOP MANUAL
I M P O R T A N T - R E A D THIS P A G E
TRUCK M O DELS COVERED
This manual contains “ on-the-vehicle" maintenance, light repair overhaul information on Chevrolet Truck Models listed on page iv. Since many truck models with various combinations of equipment are covered in this manual, the reader must necessarily re fe r to truck model applications and methods of distinguishing design d ifferences in each manual section.
A ll standard equipment and the most commonly used regular production options a r e included in this manual. Many special equipment and accessory items are available on these Chevrolet Trucks, however, these items are too numerous to permit their coverage in this manual.
M A N U A L A R R A N G E M E N T

This manual is divided into major sections in the sequence shown on the margin of the title page. A black tab bearing the major section numb er is placed on the firs t page of each major section which indexes with the tab on the title page. Many of the major sections are divided into sub-sections, each sub-section containing important and specific information on related units or components. A section index is also included on the firs t page of each major section, when the m ajor section is divided into sub-sections.

PAGE A N D ILLUSTRATION N UM BERS
The manual pages are numbered consecutively throughout the manual. Illustrations are numbered consecutively within each section, or within each sub-section when the major section is so divided.
SPECIFICATIONS
Service data, fits, and tolerances are listed at end of each section o r sub-section under the heading “ Specifications." In some cases reference must also be made to these “ Specifications" for model application and methods of distinguishing the various design and construction differences. Manufacturers model or part numbers are used in many instances in the “ Specifications" tabulations. These numbers are provided prim arily fo r unit identification or truck model application reference, and should be referred to when ordering parts. A ll detail service part numbers must be obtained from the applicable Parts Book.
SPECIAL TOOLS
Special tools and equipment are mentioned, and in many instances illustrated, throughout the text. These tools are specially designed to accomplish certain operations efficiently and readily. Such tools are mentioned in the text by tool vendor's numbers.
SERVICE BULLETINS
Service bulletins are issued, when required, supplementing or in some cases superseding information in this manual. Information in these bulletins should be noted in the text of the applicable manual section and the bulletin filed for ready reference.
ALPHABETICAL IN D E X
Important subjects, with manual page number references, are alphabetically listed in the index in the back of this manual.