Specification Charts 
Replacement  Parts 
Replacement part numbers listed in this  section are based on the latest 
information available 
at the  time of printing,  and are subject to change.  If a 
part listed  in this  manual 
is not the same as the part used in your vehicle 
when 
it was built,  or if  you  have any questions,  please  contact your GM 
truck  dealer. 
Engine  Identification -Gas Engines 
Engine 
Type  VIN  Code 
Fuel System 
Produced  By 
Emissions 
5.7L 
V8 
K 
TBIT 
U.S., CAN. 
JJD*/HD** 
“Light  Duty Emissions  with 
8500 GVWR and  below or: 
**Heavy  Duty  Emissions with  8501 GVWR and above 
?Throttle  Body  Injection 
Engine  Identification  -Diesel  Engines 
Engine 
Type  VIN  Code 
Fuel  System 
Produced  By 
Emissions 
Wheel Nut Torque 
MODEL 
C 1500 
K 1500, C-K 2500 
C-K 2500 
6.5L 
V8 
S 
Turbo  Diesel 
U.S. 
LD 
DESCRIPTION 
5 bolts (14mm) 
6 bolts (14mm) 
8 bolts (14mm) 
6.5L 
V8 
F 
Turbo  Diesel 
U.S. 
HD 
TORQUE 
120 ft. lbs. (1 60 Nom) 
120 ft. lbs. ( 1 60 Nom) 
I20 ft. Ibs. (I 60 Nom) 
6-81 
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