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Old 08-25-2013, 08:01 AM
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16.5" replacing 16" Wheels?

Good morning,

I have an opportunity to get a different set of wheels with very good condition skins. They are currently on an '85 F250.
Set of four: 33 x 12.5 16.5 W/rims FROM A 1985 F250. Load range D. for sale locally.

My '94 currently has steel wheels with a cover on them. Tires are: 235R16's

Naturally 8 lug. I found out that the bolt pattern is probably 8 on 6.5 ?

I also found that wheel size is rated - 16" "Minimum".
Does that mean that F250ís can upsize wheels, but bolt patterns remain same?

So long story shorter, will those referenced wheels work on my rig?

I'm oh so new to most things mechanical, but have a desire to learn and turn my own wrench. And have no clue about wheels and tires.

The 33 designation is what? Is that the same as the designation as in the 1st set of say: Lt235?
I presume this a bigger/taller tire.
If so, will there be rubbing issues if truck is stock?
Is there somewhere I can look, unless someone here does good explanation to help my understanding of this subject matter, to maybe get the differences of these two sizes? Mine vs. the set in question.

Thanks for any info that helps me learn something. Sorry for what may be stupid questions
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Old 08-25-2013, 04:38 PM
Compression Ignition Addict

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1. '85 and '94 Ford trucks are more or less the same, if it fits on one, it will fit on the other.
2. In your tire size: 235R16, you left out the aspect ratio that is very important to the size of the tire.
235: Section width of the tire: ie from sidewall buldge to sidewall buldge.
75: Aspect ratio, as in the amount of sidewall height in relation to the section witdth, in a percentage.
R: radial
16: rim diameter.
LT: Light Truck

33: overal diameter
12.50: section width
16.5 rim diameter.

Your truck has the very common 8x6.5 lug pattern. All GM, Dodge, and pre 1999 Ford wheels have that lug pattern.

Try playing with this web site, it should help understanding tire sizes.

Custom rims, wheel tire packages for your ride - RIMSnTIRES.com
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Old 08-25-2013, 07:40 PM
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Good evening, Karls-

...and thanks for the reply, & I appreciate the link!

Yeah, my bad - the correct spec's of my tire on my IDI are:

So, now over to that website and do some pokin' around and see if I learn something. then I'll be a little smarter when it comes to tires and wheels.

Then if a deal comes along, I can put them on my 94. Like the one asked about. Off to find out if they might work??

Thanks again.
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