Description
This 1951 GMC Trucks Series 520-970 Maintenance Manual is a reproduction of the original, out of print manual. This manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1951 GMC Gasoline and Diesel 520-970 trucks.
Models Covered
520 HCS,HCR, HC, HFR, HF
600 HC, HF
620 HCR, HC, HFR, HF
640 HCR, HC, HFR, HF
650 HC, HF
700 HC, HF
720 HCR, HC, HFR, HF, HCW, HFW
740 HCR, HC, HFR, HF, HDCR, HDC, HDF
750 HCR, HC, HFR, HF, HDCR, HDC, HDCW, HDFR, HDF
770 HC
850 HC, HF, HCW
870 HC, HDC
890 HC
900 HDCR, HDC
910 HDC
940 HDC
950 HDCW
970 HDCW
Gas Engines Covered
Engine / Displacement
318 / 318.4 cu. in.
360 / 360.8 cu. in.
426 / 425.6 cu. in.
503 /502.7 cu. in.
Diesel Engines Covered
Engine / Displacement
4-71 / 283.7 cu. in.
6-71 / 425.6 cu. in.
Table of Contents
INTRODUCTORY
Warranty
Section Index
Quick Index
Model Identification
Model Data
Alphabetical Index
Serial Number Information
FRONT AXLE
Front End Alignment
Front Axle Repair
REAR AXLE
General Axle Information
Hypoid-Timken H-100, R-100, Eaton 1715-16, 1895-96, 1795-96
Double Reduction—Eaton Type 2613-14-15-16; 2695-96
Double Reduction—Timken Type R-200, U-200, 79721, 79740
Double Reduction—Tandem—Timken SD 454, SD 3010, SFD 460
Worm Drive—Tandem—Timken SW-456, SW-3012
Bevel—Tandem—Timken SBD-1555
2-Speed—Eaton Type
2-Speed—Timken Type
2-Speed Power Shift—
Timken and Eaton
CAB AND BODY
Cab and Sheet Metal
Body
BRAKES
Hydraulic Brake System
Air Brake System
Air Compressor
Hand Brake
CLUTCH
COOLING
General Cooling System
Radiator, Shutters, and
Thermostat
Fan and Water Pump
ELECTRICAL
Wiring and Miscl Electrical
Battery
Starting System
Ignition System
Generator
Regulator
Lighting
ENGINE
Engine Maintenance and Tune-up
Engine Mounting & Replacement
Gas Engine Repair
FRAME
FUEL SYSTEM
Diesel Fuel System—General——-
Gasoline Fuel System—General
Fuel Pump (Gas)
Governor (Gas Engine)
Carburetor—Holley Down-draft
Carburetor—Zenith—Horizontal
LUBRICATION
SPRING SUSPENSION
STEERING GEAR
TRANSMISSIONS
General Transmission Information
5-Speed—Clark 204V, 207VO
5-Speed—Spicer 4452, 4453
5-Speed—Spicer 5552, 5553, 752, 753
Auxiliary—Spicer 6231
Auxiliary—Spicer 8031
Torque Divider—Timken T-50
Torque Divider—Timken T-70
Power Take-off—Single Speed
Power Take-off—2-Speed &
Reverse
PROPELLER SHAFTS
HUBS, WHEELS AND TIRES
Hubs and Bearings
Wheels and Tires
TROUBLE SHOOTING
SPECIAL TOOLS
