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Old 11-27-2017, 08:37 PM   #1
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Newbie tire question

I just picked up a 1991 Ford E250 extended SMB. I wondering how big I can go with tires. It has 16s on it now. It's also 2wd. Thanks

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Old 11-27-2017, 11:16 PM   #2
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Probably one size larger tire without a lift. Anything larger will probably rub.

Read detailed trip reports, see photos and videos on my travel blog,
Current van: 2002 Ford E350 extended body camper with Colorado Camper Van pop top and Agile Offroad 4WD conversion.
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Old 11-28-2017, 06:49 PM   #3
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Related question: 1993 Ford E250 4wd, lifted, has 16s, mud and snow, rather worn. They're down to maybe 5-6/32s, and probably should be replaced. The rig fits through the garage door with maybe--MAYBE-- 0.5 inch to spare. With 16s, the rig will be too tall. If I replace them with 15s, what will be the issues relative to odometer and speedometer? Any other bright ideas? I don't need anything burly--no rock-hopping, just on USFS roads to trailheads.
1993 Ford E250 extended body, raised, EB45
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Old 11-28-2017, 07:15 PM   #4
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Scotty ---
1) One thought:
You could certainly keep your 16" wheels, and simply get a new 16" tire size that has shorter sidewalls. This would accomplish the same thing as getting new, smaller wheels and tires....but would save you the money you would have spent on new wheels.

2) Speedometer:
With a slightly smaller outer diameter on your tires, the odometer and speedometer will indeed "read a little bit high," but the van ought to drive just fine. If you are absolutely determined to make your speedometer/odometer as accurate as it can be, it is possible to recalibrate your speedometer module yourself pretty easily.

This video below covers what's involved.....

(*The video says its for 1992-1996 Broncos and F-series trucks, but the Econolines of the same years have the same speedometer module....I used this video to learn how to recalibrate the speedometer in my '95 E250 after I went to taller tires.)
Mike T
'95 Ford E250 RB30 PH
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