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#1 |
Registered User
Join Date: Jan 2007
Location: USA
Posts: 440
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Is this an original tire? Pics...
Pulled the original spare out yesterday. It had a leather strap on the top. It's a Uniroyal tire. No year marking could be found on it. Is this the OE tire that came with the truck? It looks like it's never been used/touched, and the bolts holding the spare mount had the same light undercoating spray on them that the rest of the underside has.
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Kurt Instagram: @kurtkphoto 1978 C10 Silverado 1991 Camaro B4C |
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#2 |
Registered User
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,188
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Re: Is this an original tire? Pics...
Looks like original vintage, but the hub cap marks on the inside of the rim show it has been used on the truck at one time. If you do a google search you can find out some decoding information on tires. You may be able to pinpoint the month/year of manufacture.
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#3 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is this an original tire? Pics...
KMK454 - what is this leather strap of which you speak?
I agree with Tucson, btw - hubcap scratches mean it's been installed at some point. K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#4 |
Registered User
Join Date: Aug 2009
Location: hillborough nc
Posts: 410
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Re: Is this an original tire? Pics...
could be my 77 came with uniroyal tires when it was new
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77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod ![]() |
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#5 | |
Registered User
Join Date: Jan 2007
Location: USA
Posts: 440
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Re: Is this an original tire? Pics...
Quote:
Keith, the leather strap was on the top side of the spare. It was glued to the bottom of the frame and appeared like it was supposed to wrap around the tire like a belt that served as a secondary means of securing the tire. I have no idea if it's original or what. There were two holes that were on the flip side of the adhesive points so maybe at some point it was bolted or tied in somehow.
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Kurt Instagram: @kurtkphoto 1978 C10 Silverado 1991 Camaro B4C |
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#6 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is this an original tire? Pics...
Hmm - leather strap is not ringing a bell with me, and the first pit job (underneath) in my area was the spare tire install. I'm wondering if it was just to help protect the tire from rubbing on the frame or the carrier.
Chevy trucks did come with Uniroyal brand tires. Truth be told, there was motivation to supply trucks with the cheapest tire possible, because any savings on one tire was multiplied by 5 (four on the ground + the spare, if it got one; spare was optional). Here's the link to the info kit for a '78 Chevy pickup from the GM Heritage Center archive. This indicates a G78-15B tire as standard (bias ply). http://www.gmheritagecenter.com/gm-h...olet-Truck.pdf K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#7 | |
Registered User
Join Date: Jan 2007
Location: USA
Posts: 440
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Re: Is this an original tire? Pics...
Quote:
As for the tire, it appears to be original based on that document you supplied. Also, I have a 78 Chevy Trucks binder from a now defunct dealership that has all the information on these; I'll check that since it shows specs on everything. I can't believe I didn't think of that earlier...
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Kurt Instagram: @kurtkphoto 1978 C10 Silverado 1991 Camaro B4C |
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#8 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Is this an original tire? Pics...
I would have thought they would have been radials by '77, but I could be wrong.
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1974 Jimmy- 5.3/4L80e/NP241 |
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#9 |
Registered User
Join Date: Oct 2010
Location: Largo Florida
Posts: 632
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Re: Is this an original tire? Pics...
The 1978 C15 GMC that my Father bought new came on Firestone bias plys and not white walls. Then again back then there were optional tires. I have never seen leather between the frame and the spare but that may have been a dealer fix to keep the tire from squeaking against the frame.
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Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle." |
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#10 |
Registered User
Join Date: Oct 2006
Location: iowa
Posts: 722
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Re: Is this an original tire? Pics...
i'd say there is a good chance its original.
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"Horsepower is how fast you hit the wall, torque is how far you carry the wall with you." '84 chevy half ton short box 2wd, 67,000 actual miles ![]() '03 chevy 1500 HD crew cab 4x4 standard box, 6.0L ![]() ![]() ![]() |
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#11 |
78 Big10 454
![]() Join Date: Jul 2008
Location: Pismo Beach, CA
Posts: 838
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Re: Is this an original tire? Pics...
I've had my 78 since new. It came equipped with G78-15B blackwall Firestones. They lasted all of about 10,000 miles....
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1978 Chevy SWB C-10 2WD 454/400 |
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#12 |
Registered User
Join Date: Jan 2007
Location: USA
Posts: 440
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Re: Is this an original tire? Pics...
Weird; these are G78-15B whitewall Uniroyals. All the documentation I have says G78-15B tires but not what brand.
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Kurt Instagram: @kurtkphoto 1978 C10 Silverado 1991 Camaro B4C |
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#13 | |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is this an original tire? Pics...
Quote:
I tried to steer them to put a better tire on my truck when it was built; it didn't work... K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#14 | |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is this an original tire? Pics...
Quote:
(lol) They would wear funny; they weren't particularly "round" or easy to balance. For development work - we used to "shave" the tires and do "radial force vector" measurements to try to get a really smooth set of tires - or - I would usually keep a set of comparable Michelins, which were better than that right out of the box. K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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