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06-10-2011, 09:01 PM
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#1 |
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Registered User
Join Date: Mar 2011
Location: Tallahassee, fl.
Posts: 21
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Original Tire size
Does anyone know the original tire size of a 67 half ton? The spare tire has a H78 on the tire, i guess it is the original or at least very old. Can't find anything on the net. Any info is helpful. Thanks Josh
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06-10-2011, 11:18 PM
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#2 |
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Old Skool Club
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: Original Tire size
7.75-15. 8.00 or 8.25's were optional.
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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06-10-2011, 11:44 PM
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#3 |
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Hand Crafted C-10
Join Date: Aug 2006
Location: Burien, WA
Posts: 5,180
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Re: Original Tire size
Great info ChevLoRay!
From a thread a few years ago, HERE; tire size was determined by GVW. Per RJGeister in post nine… “According to the resto guide I received from Chevrolet, it is based on GVW. 4400 lbs was a G78-15 bias ply tire. 5400 lbs was a H78-15 bias ply tire or a 6.50-16 bias ply tire.” I too believe most 1/2 ton coil sprung trucks got 15". If you still have your original seat, search for the build sheet there (usually) or behind the sound proofing for your gas tank. I was able to fish mine out and save it…gave a wealth of info on my truck that wasn’t included on the SPID. For instance, on my build sheet for my ’68, that pretty much fits in my case; mine was an odd-ball 1/2 ton with leaf springs... It lists three tires on my build sheet: R69 …R650x16x6 R69 …S650x16x6 R61 …F650x16x6 I figure one must be the spare and the other two, the front and rear. My dads ¾ ton GMC had 16” 8 ply tires stock (split rims). GREAT THREAD! Thanks je406!! Here’s a partial picture of mine, mentioning tires… |
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06-11-2011, 01:08 AM
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#4 |
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Registered User
Join Date: Oct 2009
Location: Tampa Bay
Posts: 1,549
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Re: Original Tire size
From a 67 sales brochure,
1/2 ton is the first colum. First row standard. Second row optional Manual steering is standard. Power steering is optional manual steering is 8.15-15 Power steering is 6.50-16, or 7.00-17.5, or 7.75-15, or 8.00-16.5
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