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#1
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Working on a 1972 Formula that originally came with 14" Honeycomb wheels. However, the plans are to install a set of 15" Honeycomb wheels. What would have been the original tire choices in 1972 for 15' wheels?
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#2
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Goodyear Polyglas or Firestone Wide Oval
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#3
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F60/15 for some reason I believe the Poly glas would be correct, but the repop wide oval radials look interesting
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#4
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F60x15 on a 15x7 wheel. 235/60R15 is basically same size as the F60....
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Current Pontiacs -1973 Formula SD455 - #'s auto orig paint 1972 Trans Am - 4 speed orig paint 1966 2+2 convertible - 421 4bbl automatic 1967 Grand Prix - 4 speed orig paint 1967 GTO - 4 speed orig paint 35k orig miles |
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#5
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Yes, we have a 72 with an original Firestone wide oval f60-15
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#6
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F70-14.. could even be black wall.
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" Long may we DRIVE !" |
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#7
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Because I suspect 1970 through 1972 used the same tires, here is an original 1971 wheel and tire.
Edit: According to a superbirdclub article, this is a second week of July 1970 dated tire; = 28th week of 1970; It is pre-DOT with an eight character date code which starts with 'A7' According to this chart: A7 = 28th week of 1970; 2nd week of July 1970 Also, this is a KN wheel dated July 28 1970 - which is one of two dates that wheels with this code were made.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) Last edited by unruhjonny; 11-18-2025 at 02:42 PM. |
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#8
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I believe in 72, Either Firestone or Goodyears could have been installed with F60x15. I bought a 72 Formula 455 W/ handling PKG off the original owner back in 1979. It had Wide ovals on it. At the time I worked for goodyear and asked him about the tires He said it originally came with wide ovals, It also still had the original spare.
I currently own a 72 T/A. I have the original build sheet. It shows "UDDL 5" as a tire code."UDDL" was a code that goodyear had printed in large letters on the tread of the tire. "5" was that my T/A came with 5 full size tires, no mini spare. I can't speak for other years however, most auto manufacturers would prefer to have multiple sources for parts in case of a supply issue. I would have to imagine that would be the case but who knows. |
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#9
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Thanks for the information everyone.
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