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Bizarre - Tire Question

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Old Mar 22, 2010 | 07:26 PM
  #1  
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Default Bizarre - Tire Question

Ok, I've done my homework, waited patiently for spring, and ordered my new wheels. They arrived just as I expected.

18x10.5 rear, 18x9.5 front for my '94 coupe.

All wheel/tire packages I've seen for 18s feature 295/35 rear and 275/35 front....so when I called Discount Tire tonight to order said tire sizes, the guy was telling me their system recommends 275/40 fronts, not 275/35, in part because of load-bearing reasons.

My question: what's the deal? It sounds bizarre! I've got both front sizes there and can have either installed this coming Saturday.
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Old Mar 22, 2010 | 07:57 PM
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I sure wouldn't use that 275/40 size.
That tire is approx. 1" taller in overall diameter than your original front tire.

275/40-17 = 25.66" approx. diameter
275/35-18 = 25.57" approx. diameter

275/40-18 = 26.66" approx. diameter.

You want to stay as close to the original diameter as possible.
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Old Mar 22, 2010 | 08:05 PM
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Originally Posted by RollaMo-LT4
I sure wouldn't use that 275/40 size.
That tire is approx. 1" taller in overall diameter than your original front tire.

275/40-17 = 25.66" approx. diameter
275/35-18 = 25.57" approx. diameter

275/40-18 = 26.66" approx. diameter.

You want to stay as close to the original diameter as possible.
Completely. Someone is blowing a little smoke!
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Old Mar 22, 2010 | 08:36 PM
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I am running 295/35-18 on all 4 corners just fine on 10.5 rims. Next time I will probably go to 315's.

-D
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Old Mar 22, 2010 | 09:13 PM
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Thanks for the replies.

It really threw me at the time because I was completely not expecting it...and he was pretty adamant. There's that moment of doubt even though you've seen something a hundred times.

He said they only move to 35 at 19" wheels. That's when I thought It wasn't just me anymore!
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Old Mar 22, 2010 | 10:38 PM
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^^yeah, I got the smaller size on my 18" rears and it sux......Made first gear nearly worthless. as soon as I get the clutch out, it is time to shift.
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