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| | | Re: Tire Size Question | Joined: Sep 2009 Posts: 1,051 old hand | old hand Joined: Sep 2009 Posts: 1,051 | 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.
'85 GMC Shorty '98 Suburban K2500 '98 Pontiac G8 GT '77 Pontiac Astre '95 Jeep Wrangler "I thought you weren't allowed to talk to guys with vans??"
| | | Re: Tire Size Question | Joined: Jan 2001 Posts: 907 Likes: 1 old hand | old hand Joined: Jan 2001 Posts: 907 Likes: 1 | 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 | | | Re: Tire Size Question | Joined: Sep 2008 Posts: 3,473 Likes: 1 pooh-bah | pooh-bah Joined: Sep 2008 Posts: 3,473 Likes: 1 | Damn, 85 side wall ... that's a big one
Cheers! Been There, done that, Member of those.... Built for comfort not for speed ....Well speed too !... I am a vanner, Promise me the world, give me nothing, I'll be back ... next year ! | | | Re: Tire Size Question | Joined: Sep 2008 Posts: 3,473 Likes: 1 pooh-bah | pooh-bah Joined: Sep 2008 Posts: 3,473 Likes: 1 | 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 ....Well speed too !... I am a vanner, Promise me the world, give me nothing, I'll be back ... next year ! | | | Re: Tire Size Question | Joined: Oct 2002 Posts: 3,601 Likes: 10 pooh-bah | pooh-bah Joined: Oct 2002 Posts: 3,601 Likes: 10 | 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. | | | Re: Tire Size Question | Joined: Feb 2009 Posts: 247 enthusiast | enthusiast Joined: Feb 2009 Posts: 247 | 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
| | | Re: Tire Size Question | Joined: Aug 2005 Posts: 21,211 Likes: 25 Supreme Master | Supreme Master Joined: Aug 2005 Posts: 21,211 Likes: 25 | I think Cherry would object to saying her sizes are 235-85-16!
Nate Breece | | | Re: Tire Size Question | Joined: Feb 2009 Posts: 247 enthusiast | enthusiast Joined: Feb 2009 Posts: 247 | I agree, but didn't notice my blunder until after "edit time" had expired...
SORRY! | | | Re: Tire Size Question | Joined: Aug 2002 Posts: 18,536 Likes: 136 Supreme Master | Supreme Master Joined: Aug 2002 Posts: 18,536 Likes: 136 | Arianrhod:2003 Chevy Astro Black Magic: 1985 Dodge B-250 Serenity:1985 Chevy G-20 The Outcast:1983 Ford club wagon Luna 1974 VW bay window transporter Freedom:1990 Ford E-150(parts van) Outcast Vanners van club Support your local 2% | | |
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