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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Wheel/tyre sizing?

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Old Oct 23, 2008 | 12:50 PM
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Wheel/tyre sizing?

Could someone be so kind as to let me know what the factory wheel/tyre combo's are for the '83 F100/F150?

Also, I am currently running 9.5 x 30 15's. I have the Miata tyre calculator but it doesn't cater for this sizing format. Does anyone know how that would equate in road tyre size? I am trying to work out what tyres to order for a set of 18's before I buy them.

 
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Old Oct 23, 2008 | 01:37 PM
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yeesh, they started at 215 75 r15 for the light 2wd up to 225 75 15 for the 4wd, and both went to 235 75 15 a few years later
 
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Old Oct 23, 2008 | 02:02 PM
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This page will compare tire sizes and it has both formats. FWIW stock tire size on most F series was 235/75x15 on a 7-7.5" rim, but it takes a 31x10.5 on an 8" rim to look proportional IMO.

Tire Size Calculator - tire & wheel plus sizing
 
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Old Oct 23, 2008 | 02:18 PM
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If the Truck still has it's original Factory Safety Certification lable located on the Cab just below the door striker bolt on the driver side, (Left hand Drive). It will show the Original Tire size for your truck.

I'm going to make this simply tire sizes because the wheel and tire and wheelbase combos would write a small book...

------------

Tires (Tyres) for the F-100 began at...

-----------
F-100 / 4x2 / 4700 GVWR (Gross Vehicle Weight Rating)

P195-75-R15
P205-75-R15
P215-75-R15
P235-75-R15
--------------
F-100 / 4x2 / 5000-5150 GVWR

P205-75-R15
P215-75-R15
P235-75-R15
--------------
F-150 / 4x2 / 5250-5450 GVWR

P215-75-R15
P235-75-R15
---------------
F-150 / 4x2 / 5700/5800/5900/6050/6100/6250 GVWR

P235-75-R15

---------------
F-150 / 4x4 / 5500-5700 GVWR

P215-75-R15
H78-15C
P235-75-R15
L78-15C
7.00-15D
10-15C
10R-15C

---------------
F-150 / 4x4 / 6050/6250/6450 GVWR

P235-75-R15
L78-15C
7.00-15D
10-15C
10R-15C

-----------

Source: Ford Service Manual:
FPS 365-322-81
 
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