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#559311 - April 29th 2012 8:03 pm Tire Size Question
Cherry Offline
enthusiast

Registered: February 03rd 2012 4:39 pm
Posts: 235
Loc: Traveling
I was given a set of tires for my van that are 245/ 70R16 the ones that are currently on my van are T235/ 85R16. Will the 245/ 70R16 ones fit? Van in question is in my signature.

If I understood what any of the numbers aside from the "16" were I might be able to figure this out. I just hate to pay to have these mounted and balanced to find they won't work. Plus the tires were free so it would be nice if they would fit.
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#559390 - April 30th 2012 6:54 am Re: Tire Size Question [Re: Cherry]
NateNCBV Offline

Administrator

Registered: August 23rd 2005 12:00 pm
Posts: 20415
Loc: Brooklyn Park, Maryland, USA
You probably should use what the factory recommends. Usually inside the left front door jamb are the tire sizes. The conversion company that converted your van may have upgraded your tires and there could even be a sticker from them on the door jamb.

Most one-ton vans I've seen use a LT245/75R16 (Load Range E: 3,042 lbs)

LT=Light Truck

245=Width of tire in millimeters

75=height of sidewall (% of width, but unsure what that is)

R=Radial

16=Wheel diameter


I think you should buy 4 new tires and stay away from used. Expensive yes, but your life could depend on it.

_________________________
Nate Breece (Nate the skate)
2%
North Chesapeake Bay Vans
A-100 Van Association
Honorary Canadian(You Hoser!)
--------------
1994 Dodge B250 Elk Conversion (5.2L/A518)
1985 Dodge B150 "Burnin' Desire" (5.2L/A727)

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#559392 - April 30th 2012 7:01 am Re: Tire Size Question [Re: Cherry]
NateNCBV Offline

Administrator

Registered: August 23rd 2005 12:00 pm
Posts: 20415
Loc: Brooklyn Park, Maryland, USA
Oh..I see your van is an E-250. No matter with all the extra weight, it certainly won't hurt to use the Load Range E tires.
_________________________
Nate Breece (Nate the skate)
2%
North Chesapeake Bay Vans
A-100 Van Association
Honorary Canadian(You Hoser!)
--------------
1994 Dodge B250 Elk Conversion (5.2L/A518)
1985 Dodge B150 "Burnin' Desire" (5.2L/A727)

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#559397 - April 30th 2012 7:26 am Re: Tire Size Question [Re: Cherry]
Cherry Offline
enthusiast

Registered: February 03rd 2012 4:39 pm
Posts: 235
Loc: Traveling
My sticker from Starcraft says to use LT215/85R
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#559417 - April 30th 2012 11:18 am Re: Tire Size Question [Re: Cherry]
Cherry Offline
enthusiast

Registered: February 03rd 2012 4:39 pm
Posts: 235
Loc: Traveling
Well, went to Wally World - they said the tires I have on the van are fine and that those other ones would have dropped me about 2 inches so I'm sticking with what I have for a bit! Thanks for the input, Nate!
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#559424 - April 30th 2012 12:03 pm Re: Tire Size Question [Re: Cherry]
NateNCBV Offline

Administrator

Registered: August 23rd 2005 12:00 pm
Posts: 20415
Loc: Brooklyn Park, Maryland, USA
215's???? Good grief that's a narrow tire for that van.
_________________________
Nate Breece (Nate the skate)
2%
North Chesapeake Bay Vans
A-100 Van Association
Honorary Canadian(You Hoser!)
--------------
1994 Dodge B250 Elk Conversion (5.2L/A518)
1985 Dodge B150 "Burnin' Desire" (5.2L/A727)

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#559449 - April 30th 2012 1:28 pm Re: Tire Size Question [Re: Cherry]
Cherry Offline
enthusiast

Registered: February 03rd 2012 4:39 pm
Posts: 235
Loc: Traveling
Yeah and I think the ones I have on there now are too narrow. I took my spare tire cover off and it's the original size tire - the 215 - so I'm going to have one that's the same size as what I'm using mounted.
_________________________

'87 Ford e250 Starcraft camper van v8 5.8L 351W-HO
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#559476 - April 30th 2012 4:32 pm Re: Tire Size Question [Re: Cherry]
wookee Offline
carpal tunnel

Registered: April 14th 2003 12:00 pm
Posts: 7504
Loc: Joppa Md. U.S.A.
install the two best tires of the same size on the front axle.
the wider 245/70/17's can go one the rear.
actually the 245/70/17's should be taller than the 215/70/15.
dont just look at numbers.
Compare the sizes by physically rolling the tire you want to mount next to the ones on the van.
You will clearly see the difference in both with and height.

.......Wookee
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A life style you have to LIVE to understand!



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#559829 - May 02nd 2012 1:39 pm Re: Tire Size Question [Re: Cherry]
draggnastro Offline
pooh-bah

Registered: May 09th 2006 12:00 pm
Posts: 4460
Loc: Springfield, Illinois
x2 on buying new. Tires are the only thing thats not worth it to skimp on. Your LIFE and your VAN depend on it. especially as tall as you are that thing would likely tip in the event of a blowout
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#560292 - May 05th 2012 3:04 pm Re: Tire Size Question [Re: Cherry]
Bullet Offline
old hand

Registered: September 10th 2009 9:14 pm
Posts: 1016
Loc: Bristol, TN
Cherry you can go to Tire Rack website, search by size, click on any that come up and then hit the specs tab, they give overall height, tread width, recommended rim size, etc. for all the different sizes that tire style is available in on one page. It may help when you're not sure on tire size.

My 85 GMC 1500 shorty actually recommends 195/15's, that's two sizes smaller than my Astro recommends. I have 245/60 and 275/60 on the 85 and getting ready to mount up 235/70's on my 'Stro.
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'99 AWD Astro
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#561038 - May 09th 2012 11:23 am Re: Tire Size Question [Re: Cherry]
tumbleweed Offline
addict

Registered: January 27th 2001 12:00 pm
Posts: 699
Loc: Centreville, VA. 20120 USA
My 1999 express takes p235R75-15 Since its a high top conversion i only use 108 speed rating. 101 speed rating for a conversion van will wear quickly. I have Dunlops on right now but in a few weeks moving up to Michelin tires.

Tumbleweed
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#561167 - May 09th 2012 6:35 pm Re: Tire Size Question [Re: Cherry]
Phoenix Offline
pooh-bah

Registered: September 13th 2008 4:42 pm
Posts: 3337
Loc: Evansville, Indiana
Damn, 85 side wall ... that's a big one
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#561173 - May 09th 2012 6:47 pm Re: Tire Size Question [Re: tumbleweed]
Phoenix Offline
pooh-bah

Registered: September 13th 2008 4:42 pm
Posts: 3337
Loc: Evansville, Indiana
Originally Posted By: tumbleweed
My 1999 express takes p235R75-15 Since its a high top conversion i only use 108 speed rating. 101 speed rating for a conversion van will wear quickly. I have Dunlops on right now but in a few weeks moving up to Michelin tires.

Tumbleweed
Free Spirit
Spirit In The Wind
Nova Vans
Virginia Van Council
Troopa Sinner Tribe

Try the Michelin MS-2's They are made with a silicone base rubber and feel very slick to touch, just like silicone. They are a long range tire with a 75,000 mile warranty. I have a set on my ram pick-up. but they come in many sizes. They are pricey but you'll buy two cheap sets to one set of these.
_________________________
Cheers!

Been There, done that, Member of those....

Built for comfort not for speed angel....Well speed too !...smile

I am a vanner, Promise me the world, give me nothing, I'll be back ... next year !

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#561524 - May 10th 2012 10:46 pm Re: Tire Size Question [Re: Cherry]
maples01 Offline
pooh-bah

Registered: October 02nd 2002 12:00 pm
Posts: 3291
Loc: Maryville, TN
You can run 215/80 R16 load E, improves gas mileage by decreasing rolling resistance, some commercial vans run them, I prefer the 245/75 due to stability.
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#562001 - May 13th 2012 1:27 am Re: Tire Size Question [Re: Cherry]
vandude360 Offline
enthusiast

Registered: February 05th 2009 6:02 pm
Posts: 243
Loc: puyallup, washington
Here's a formula for calulating Tire Diameter (height) which will affect Speedometer readings, MPG, and acceleration:

Using Cherry's current size (235/85-16)
Cross Section Width (235 mm) X Aspect Ratio (0.85) = sidewall height X 2 (sidewall above & below rim) 25.4 (converting MM to inches) + rim diameter = 31.73" . "freebie" size (245/70-16)= 29.5"

Tire Revolutions Per Mile formula:

Tire Diameter X 3.1415= Tire Circumference 63,360 (# of inches per mile) = Tire Revolutions Per Mile
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#562095 - May 13th 2012 10:53 am Re: Tire Size Question [Re: Cherry]
NateNCBV Offline

Administrator

Registered: August 23rd 2005 12:00 pm
Posts: 20415
Loc: Brooklyn Park, Maryland, USA
I think Cherry would object to saying her sizes are 235-85-16! lol grin
_________________________
Nate Breece (Nate the skate)
2%
North Chesapeake Bay Vans
A-100 Van Association
Honorary Canadian(You Hoser!)
--------------
1994 Dodge B250 Elk Conversion (5.2L/A518)
1985 Dodge B150 "Burnin' Desire" (5.2L/A727)

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#562113 - May 13th 2012 11:31 am Re: Tire Size Question [Re: NateNCBV]
vandude360 Offline
enthusiast

Registered: February 05th 2009 6:02 pm
Posts: 243
Loc: puyallup, washington
I agree, but didn't notice my blunder until after "edit time" had expired...

SORRY!
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new Junkyard Jitters Progress Report pages coming soon.
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#562176 - May 13th 2012 8:36 pm Re: Tire Size Question [Re: NateNCBV]
lukester Offline
carpal tunnel

Registered: August 19th 2002 12:00 pm
Posts: 8805
Loc: Lake City Florida, United Stat...
Originally Posted By: NatetheskateNCBV
I think Cherry would object to saying her sizes are 235-85-16! lol grin


rofl
_________________________

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Freedom: 1990 Ford E-150
PROUD member of the Florida Van Council
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#562188 - May 13th 2012 9:51 pm Re: Tire Size Question [Re: vandude360]
Cherry Offline
enthusiast

Registered: February 03rd 2012 4:39 pm
Posts: 235
Loc: Traveling
Originally Posted By: vandude360
I agree, but didn't notice my blunder until after "edit time" had expired...

SORRY!


No worries ... I'm hard to offend.
_________________________

'87 Ford e250 Starcraft camper van v8 5.8L 351W-HO
Wayward Pussy Inn|Facebook

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#562897 - May 17th 2012 1:40 am Re: Tire Size Question [Re: Cherry]
Uncle_Fester Offline
Festerus Vannimus

Registered: May 26th 2007 10:41 pm
Posts: 8820
Loc: On Route 66 in Bethany Oklahom...
Originally Posted By: Cherry
Originally Posted By: vandude360
I agree, but didn't notice my blunder until after "edit time" had expired...

SORRY!


No worries ... I'm hard to offend.


That's probably a good thing around here! Loll
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1)The 1991 Dodge B250, J.Y.D.


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