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03-22-2010, 01:18 AM
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#1 |
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Account Suspended
Join Date: Sep 2009
Location: No Longer Here
Posts: 352
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wierd size spare tire on my 79
i pulled my spare off since i was getting new tires and it read Goodyear H7815 LT. can anyone tell what the size would be now it says the same on my door. the tire looks brand new but i had it replaced i did keep it though. the tires on it now are 235/7515 is that the right size? the old tire says steel belted bias i never heard of one.
shoot me something if anyone knows something |
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03-22-2010, 10:40 AM
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#2 |
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Registered User
Join Date: Feb 2010
Location: York, PA
Posts: 180
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Re: wierd size spare tire on my 79
I am no expert but a quick google came up with this Tire Size Conversion Chart If I'm reading the chart correctly, an H78/15 translates into a 225/75R15. Bias Ply was the tire design before Radials were developed. Looks like we are both showing our ages.
 I have 235/75 15's on my truck also. They are a little taller I believe and may throw the speedo off a tad. I'm sure someone with more knowledge will correct anything that I have wrong.
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1979 C10 Silverado 1998 Camry 5spd 2005 Harley ElectraGlide |
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03-22-2010, 10:44 AM
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#3 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,297
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Re: wierd size spare tire on my 79
he is right.. they used to do letters.. i run 235 in the back to handle more weight and make the truck more stable and 225 up front
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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03-22-2010, 10:49 AM
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#4 |
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Registered User
Join Date: Feb 2010
Location: York, PA
Posts: 180
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Re: wierd size spare tire on my 79
I also just found this cool little Tire Size Calculator that will show you how a different tire size will effect your speedometer.
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1979 C10 Silverado 1998 Camry 5spd 2005 Harley ElectraGlide |
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03-22-2010, 11:33 AM
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#5 | |
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The One And Only !!!
Join Date: Jan 2007
Location: Hole in the woods Florida
Posts: 4,567
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Re: wierd size spare tire on my 79
Quote:
Now that's cool calculator, I was able to enter the sizes on my 97 and see why it sucks sooo much gas and how to calculate my speed since the speedo is off ! Now to see if I can find some tires close to stock height to get my mileage back up....
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93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz !  The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. "Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
Last edited by Restrorob; 03-22-2010 at 11:35 AM. |
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