Chevrolet Light Duty Truck 1973 Service Manual page 12

0 6 GENERAL IN F O R M A T IO N A N D LUBRICATIO N
W H E E L
B A S E
C l0514 and
C10514 + Z58 or Z59 106.5
C l0703
117.5
Cab Chassis
C10703 + E62 or E63
117.5
ickups
C10903
131.5
Cab Chassis
C10903 + E62 or E63
131.5
Pickups
C10906, and
C10906 + E55
129.5
Suburbans
C20903
131.5
Cab Chassis
C20903 + E62 or E63
131.5
Pickups
C20906, and
C20906 + E55
129.5
Suburbans
C20963
164.5
Crew Cab Chassis
C20963 + E63
164.5
C30903
Cab Chassis w ith
131.5
single rear wheels
C30903 + E62 or E63
131.5
Pickups
* Refer to the Gross Vehicle Weight Rating plate on the vehicle. Gross A xle Weight Rating-Front, and Gross A xle Weight Rating-Rear on this chart are based upon component
m inim um capacity o f axles, springs, or tires.
b = base equipment
RESTRICTIONS
C10703-10903 and C10703-10903 + E62 or +63, w ith LF8 V8 engines on 4900 GVWR vehicles:
RPO J70 power brakes required.
C10906 and C10906 + E55:
RPO A T5 not available on 5400 GVW.
When RPO A T 5 is used on 6000 GVWR, RPO F60 is required.
RPO AS3 available o nly on 6800 GVWR vehicles, AS3 requires F59.
When RPO AS3 or A T 5 are not specified, GVWR is restricted to 5400 or 6000.
L78-15 and 9.50-16.5 tires:
Heavy d u ty wheels are required w ith these tires, and are included when installed at the factory.
For detailed inform atio n , see tire and wheel restrictions in "O w ner's and D river's Manual".
LOAD CAPACITY CHART
G R O S S
V E H I C L E F R O N T
W E I G H T T I R E
R A T I N G F R O N T P R E S ­ R E A R
( P O U N D S ) * T I R E S S U R E T I R E S
4900 E78-15B b 30 E78-15B
5200 G78-15B 32 G78-15B
5700 H78-15B 32 H78-15B
• 4900 G78-15B b 32 G78-15B
5400 H78-15B 30 H78-15B
6000 L78-15B 28 L78-15B
• 4900 G78-15B b 32 G78-15B
5400 H78-15B 30 H78-15B
6000 L78-15B 28 L78-15B
• 4900 G78-15B b 32 G78-15B
5400 H78-15B H78-15B
30
6000 L78-15B L78-15B
28
• 4900 G78-15B b 32 G78-15B
5400 H78-15B 30 H78-15B
6000 L78-15B 28 L78-15B
5400 G78-15B b 32 G78-15B
6000 H78-15B 30 H78-15B
6800 L78-15D 30 L78-15D
6400 8.75-16.5C b 40 8.75-16.5C b
7500 9.50-16.5D 30 9.50-16.5D
8200 9.50-16.5D 30 9.50-16.5D
6400 8.57-16.5C b 40 8.57-16.5C b
7500 9.50-16.5D 30 9.50-16.5D
8200 9.50-16.5D 30 9.50-16.5D
6650 8.75-16.5C b 40 8.75-16.5C b
7500 9.50-16.5D 30 9.50-16.5D
8200 9.50-16.5D 30 9.50-16.5D
8200 9.50-16.5D b 35 9.50-16.5D b
8200 9.50-16.5D b 35 9.50-16.5D b
6600 8.75-16.5C b 40 8.75-16.5C b
8200 9.50-16.5D 30 9.50-16.50
9000 9.50-16.5D
35 9.50-16.5E
6600
8.75-16.5C b 40 8.75-16.5C b
8200 9.50-16.5D 30 9.50-16.5D
9000 9.50-16.5D 35 9.50-16.5E
M I N I M U M M A N D A T O R Y E Q U I P M E N T F O R G V W R A T I N G
G R O S S
R E A R A X L E
T I R E W E I G H T
F R O N T F R O N T
P R E S R A T I N G
S U R E A X L E S P R I N G S F R O N T *
b 30 3250 b 3100 b 2546
32 3250 b 3100 b 2946
3250 b 3250 F60
32 3218
b 32 3100 b 3100 b 2946
30 3100 b 3100 b 3100
3250 b 3250 F60 3250
32
b 32 3100 b 3100 b 2946
30 3100 b 3100 b 3100
32 3250 b 3250 F60 3250
b 32 3100 b 3100 b 2946
3100 b 3100 b 3100
30
32 3250 b 3250 F60 3250
b 32 3100 b 3100 b 2946
3100 b
30 3100 b 3100
3250 b 3250 F60 3250
32
b 32 3100 b 3100 b 2946
32 3100 b 3250 F60 3100
36 3250 b 3250 F60 3250
45 3800 b 3500 b 3500
55 3800 b 3500 b 3500
60 3800 b 3800 F60 3800
45 3800 b 3500 b 3500
55 3800 b 3500 b 3500
60 3800 b 3800 F60 3800
3800 b 3500 b
45 3500
55 3800 b 3500 b 3500
3800 b
60 3800 F60 3800
60 3800 b 3800 b 3800
60 3800 b 3800 b 3800
45 3800 b
3500 b 3500
60 3800 b 3500 b 3500
75 3800 b 3800 F60 3800
45 3800 b 3500 b 3500
60 3800 b
3500 b 3500
75 3800 b 3800 F60
3800
* - 5 3 0 0 GVW avail, these models w ith J70 Power Brakes add requirement.
G R O S S
A X L E
W E I G H T
R E A R R E A R
R A T I N G R E Q U I R E D
A X L E S P R I N G S R E A R *
O P T I O N S
3750 b 3000 b 2546
3750 b 3000 b 2946
3750 b 3400 G50 3218
3750 b 3100 b
2946
3750 b 3100 b 3100 J70
3750 b 4000 G50 3582 J70
3750 b
3100 b 2946
3750 b 3100 b
3100 J70
3750 b 4000 G50 3582 J70
3750 b 3100 b 2946
3750 b 3100 b 3100 J70
3750 b
4000 G50 3582 J70
3750 b
3100 b 2946
3750 b 3100 b 3100 J70
3750 b 4000 G50 3582 J70
3750 b 3100 b
2946
3750 b 4000 G50
3218
3750 b 4000 G50 3750 AS3 or A T 5
5700 b
4000 b 3980
5700 b 5200 G50 5200
5700 b
5700 G51 5560
5700 b 4000 b 3980
5700 b
5200 G50 5200
5700 b 5700 G51
5560
5700 b 4000 b 3980
5700 b 5200 G50
5200
5700 b 5700 G51 5560
7500 b
5700 b 5560
7500 b
5700 b 5560
7500 b 4800 b
3980
7500 b
5700 G50 5560
7500 b
7000 G51 6340
7500 b 4800 b 3980
7500 b 5700 G50
5560
7500 b 7000 G51 6340
LIGHT DUTY TRUCK SERVICE MANUAL