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EFV-8 Club Forum / General Ford Discussion / Tires, Coker vs Diamond Back vs American Classic

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Discussion Topic: Tires, Coker vs Diamond Back vs American Classic -- page: 1 2

Classic1

07-25-2014 @ 1:33 PM

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In the market for some new rubber for our '39 Deluxe Fordor. Somewhere along the line, suspension was dropped and smaller 1950 15 inch Mercury wheels were installed. Previous owner set it up with 195/75/R15 in the front and 235/75/15 in the rear. I want to at least bring all the tires back to the same size and considering either a 205/75 or a 215/75. Also pondering the manufacturer and vendor options. Heard mixed reviews about Coker and a lot of support toward Diamond Back. Also wondering about the American Classic brand. Looking for feedback on tire sizing, tire brand and vendors.

Steve
'39 DeLuxe Fordor

1934 Ford

07-25-2014 @ 6:36 PM

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This is a well discussed question, The answer boils down to what you like.
Radials ride better, bias ply's last longer, Diamondback's are better quality radials than other brand radials. (My opinion)
I use bias ply on the cars I consider stock and radials on the ones I consider modified.

1934 Ford's since 1972

4t6v8

07-25-2014 @ 7:30 PM

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We have a 1946 fordor sedan, we fitted 225/75R16inch whitewall radial tyres from Diamond Back Classic onto 4.5inch wide rims. Totally changed the ride and handling of the car. The white wall is 3inch wide but it stays white, doesn't 'yellow', like the bias ply tyres we had, a great job. The tyres are branded Hankook Dynapro. We have travelled over 10000miles on them now, they still look sound. One regret was I bought five, I cannot fit it in the boot/trunk as it should.

Classic1

07-26-2014 @ 10:23 PM

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No question about the fact that I want Radials. This car is a driver with enough modifications to keep it out of point judging. Presently, the tires are 13 year old Mastercraft radials that I believe came from Diamond Back. I like the idea of what Diamond Back is doing and right now considering the Diamond Back II, I believe that it's a Toyo Extensa A/S.

Steve
'39 DeLuxe Fordor

BERTHA

07-27-2014 @ 3:58 AM

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Coker...

..... born with bias, it will stay with bias.

Bob

"it's only original once""

07-27-2014 @ 5:33 AM

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I have a set of radials from both suppliers. I prefer the Diamondback's

John

joe b

07-27-2014 @ 6:44 AM

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Which of these are made in the USA?

deluxe40

07-27-2014 @ 10:46 AM

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Here are some numbers I pulled out of the Coker catalogue when faced with the same question:

Mfg: Size, Diameter, Cross Section (in inches)

Firestone: 6.00 x 16, 27.91, 6.26

Michelin: 205/70vR15, 26.5, 8.3
Michelin: 215/70vR15, 27.0, 9.2
Coker: 205/75R15, 27.1, 8.14
Coker: G78/15, 27.68, 8.05
Michelin: 225/70vR15, 27.9, 9.1
BFG: 7.10 x 15, 27.98, 7.4
Michelin: 235/70hR15, 28.0, 9.3
Coker: p235/75hR15, 28.29, 8.95
Firestone: 6.70 x 15, 28.58, 7.01
Firestone: 7.10 x 15, 28.88, 7.70
Coker: p235/75hR15, 28.91, 9,41

Note: check my numbers before you buy (old eyes). List has stock '40 Ford at the top with the others sorted by diameter. Also note that the radials are wider and that might effect ease of steering.

fenbach

07-27-2014 @ 7:47 PM

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gotta add my 2 cents. i have coker radials on my '36. it drives just fine - now, but they were horribly lop sided. one has 4-5 ounces of weights, and balancing them was largely by trial and error because the weight distribution was so uneven. and coker wouldn't even acknowledge my inquiries.

flatheadfan

07-28-2014 @ 11:24 AM

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I don't mean to hijack this discussion but I have a related question. I recently put Diamondback radials on my '51. It was recommended that I inflate the tires to 40 pounds. Well, I did and the car rides as if it has solid cement tires. If I go to 26-28 pounds would I be asking for trouble??

Thanks

Tom

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