Chevrolet 1980 Light Duty Truck Service Manual page 307

Light duty trucks
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WHEEL USAGE AND TIR E LOAD LIM ITS (LBS) A T V A R IO U S IN F L A T IO N PRESSURES
Wheel
Tire
Code
Size
ZJ
9.50-16.5
ZJ
9.50-16.5
W heel Limits
Size of
Max.
Code
Wheel
Load
(Lbs.)
CF BU
15 x 7 JJ
1670
15 x
8
JJ
1910
BT, CK
15 x
JJ
1760
8
CH
1 5 x 6 JJ
1670
CB
16.5 x
2680
ZW
6.00
15 x
JJ
1670
CB
6
1670
CC
15 x
6
JJ
19.5 x 6.00
2540
ZY
15 x
8
JJ
2030
BW. ZC
, the rear tire on the inside of the curve may be
First
relieved of so much load that it is no longer geared to the
road and it slips, grinding off the tread on the inside half
of the tire at an excessive rate. This type of tire shows much
WHEEL USAGE AND TIRE LOAD LIMITS AT VARIOUS INFLATION PRESSURES*
Wheal Code
Regular
Optional
_
ZM
ZM
zz
ZW
zw
zz
* Wheel load lim its are shown below. Vehicle loading must be limited such that neither the wheel or tire load limits are exceeded.
WHEEL CODE AND LIMITS
BIAS LIGHT TRUCK (LT) TIRES
Load
Range
30
35
D
1860
2030
E
1860
2030
WHEEL CODE AND LIMITS
Max.
Size of
Code
Press.
Wheel
(PSI)
ZK
40
16.5 x 6.00
40
ZJ
16.5 x 6.75
40
BF
16 x
6
V
2
L
55
XW
15 x
JJ
6
85
XX
1 5 x 6 JJ
55
ZT
19.5 x 6.00
55
ZX
16 x
KS
6
80
40
Fig. 3E-7~Tire/Wheel Load and Inflation Pressure-K Models
BIAS TIRES FOR LIGHT TRUCKS
Tire
Load
Ply
Size
Range
Rating
30
8.75-16.5
D
8
1570
8.75-16.5
E
10
1570
WIDE BASE TUBELESS TIRES USED AS DUALS
c
8.00-16.5
6
1195
8.00-16.5
D
8
1195
Fig. 3 E -8 --T ire /W h e e l Load and Inflation Pressure-G M odels
Inflation Pressures (PSI)
40
45
50
55
2190
2350
2500
2650
2190
2350
2500
2650
Wheel Limits
Max.
Max.
Load
Press.
(Lbs.)
(PSI)
70
2350
3170
85
2780
85
1910
70
70
2040
Location For:
2780
95
• Maximum Load
2440
75
• Maximum Pressure
• Wheel Code and "Radial" Stamps
• Wheel Size Stamps
the same appearance of tread wear as tire wear caused by
negative camber.
USED AS SINGLES
Tire Load Limits at Various Inflation Pressures (PSI)
35
40
45
50
1720
1850
1990
2110
1720
1850
1990
2110
1520
1310
1415
1310
1415
1520
1620
WHEELS A N D TIRES
60
65
70
75
2780
2920
2780
3050
3170
Optional Location
55
60
65
70
2350
2240
2240
2350
2470
2570
1710
1800
LIG H T T R U C K SER V IC E M AN U AL
3E-5
75
2680

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