Chevrolet 1980 Light Duty Truck Service Manual page 9

IM PORTAN T: RETAIN TH IS PLATE AS A PERM ANENT RECORD
Fig. 0A -4 -S e rv ic e Parts Id e n tific a tio n Plate
UNIT A N D SERIAL NUMBER LOCATIONS
For the convenience of service technicians and
engineers when writing up certain business papers such as
Warranty Reports, Product Information Reports, or
reporting product failures in any way, the location of the
various unit numbers have been indicated. These unit
numbers and their prefix or suffix are necessary on these
papers for various reasons - such as accounting, follow-up
on production, etc.
The prefixes on certain units identify the plant in which
the unit was manufactured and thereby -permits proper
follow-up of the plant involved to get corrections made
when necessary.
LO A D E D -M A X IM U M GVWR:
FRONT GAW R: 2944 LBS.
* Front Curb 2219 lbs.
Front Cargo &
Pass. Load 284 lbs.
2503 lbs.
TOTAL WEIGHT AT GROUND: 4900 lbs.
Curb weight equals the weight of the vehicle without driver,
passenger or cargo, but including fuel and coolant.
Fig. 0A-5--Typical V ehicle Loading C ondition
4900-LBS.
REAR GAW R: 2944 LBS.
'Rear Curb 1003 lbs.
Rear Cargo &
Pass. Load 1394 lbs.
2397 lbs.
GENERAL IN FO R M A TIO N
Always include the prefix in the number.
Axles
Chevrolet Built
• On 10 Series, the Code is stamped on Top of Right
Rear Axle Tube.
• On 20-30 Series, the Code is stamped on Top of the
Right Rear Axle Tube.
Dana Built
• On Front Axles, code is stamped on Top Rear of Left
Axle Tube.
• On Rear Axles, code is stamped on Rear Surface of
Right Axle Tube.
Transmissions (Fig. OA-6)
• On 3-Speed Transmissions (except Tremec), the Unit
Number is located on Lower Left Side of Case Just Below
Cover.
• On Tremec Transmissions, Unit Number is located
on Upper Left Attachment Case (Top Side).
• On Muncie 4-Speeds, Unit Number is located on
Rear Face of Case below Retainer.
• On New Process 205 model 4-wheel drive transfer
case, a build date is on tag attached to front face of transfer
case.
• On Automatic 350 Transmission, Unit Number is
Located on Right Rear Vertical Surface of Oil Pan.
• On the Automatic 400 Transmission, Serial Number
is Located on the Light Blue Plate on the Right Side of the
Transmission.
Engines (Fig. OA-7)
• 6-Cylinder Engine Unit Number Located on Pad at
Right Hand Side of Cylinder Block at Rear of Distributor.
• 8-Cylinder Gasoline Engine Code is (305, 350, 400
CID) Located on Pad immediately forward of right hand
cylinder head.
• 8-Cylinder Gasoline Engine (454 CID) Code is
located on a pad of the front top center of the engine block
immediately forward of the inlet manifold.
• 8-Cylinder Diesel Engine Code is on a label located
on rear face of the left valve cover.
Generators
Generator Unit Serial Number is located on the Drive
End Frame Below the Part Number.
Batteries
Battery Code Number is Located on Cell Cover Top
of Battery.
OA-3
LIG H T T R U C K SER V IC E M ANUAL