Tires Size

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Aug 16, 2006 | 02:25 AM

shilo

Thread Starter

4th Gear

Joined: Jul 2006

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Tires Size

Hello all, I am new at this, back in Feb,2006 I bought a 1975 Corvette.

It currently has P235/60R15 Tires on it and drives like a real bear, can anyone help me with the correct tire size I should have on this car.

I have been working hard at putting all new parts back in this to make I a correct car again.
Thanks Shilo

Aug 16, 2006 | 08:46 AM

Easy Mike

Team Owner

Joined: Jun 2000

Posts: 38,923

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From: Southbound

Cruise-In II Veteran

I run P235 70R-15s on my '68 and my '80 and don't have any problems with them.

Aug 16, 2006 | 01:03 PM

mdj21

Racer

Joined: Mar 2005

Posts: 487

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From: Jacksonville FL

can you define what you mean by "driving like a real bear?"

i have no power stearing and would describe my car as driving like a real bear when i am in a parking lot, but that has nothing to do with the tires.

what is the car doing or not doing that makes it a bear?

Aug 16, 2006 | 07:54 PM

dgruenke

Drifting

Joined: Apr 2002

Posts: 1,716

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From: New Baden Illinois

Correct tire conversion from the original tire is 225/70R15. Some later models ('78+) had the optional 255/60R15. However, I have found that on the older models, if any of the suspension is worn or sagging, you may have tire rub.

The 235/60R15 are small for the car. You are probably also getting an inaccurate speedo reading because of the smaller tires.

Aug 16, 2006 | 08:16 PM

Rockn-Roll

Melting Slicks

Joined: Dec 2000

Posts: 3,407

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From: Carmichael CA

255/60-15's I like the BFGoodrich T/A Radials for a good cheap tire on all 4 wheels.

Aug 17, 2006 | 12:13 AM

Steve COSD

Pro

Joined: Mar 2005

Posts: 683

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Quote:

Originally Posted by shilo

I have a 75 also. It looks as if you have the aluminum wheels on your car. On my aluminum wheels I run the same size as my 1982 Vette, 25560R15. If your car drives poorly that is usually a sign of poor alignment or worn suspension parts. Corvettes need to be four wheel aligned. Also not just anyone can align a Vette so that it tracks correctly. Call your local Corvette Club or Club's and find out in your area who does good work. A poorly aligned Corvette can be actually irritating to drive. Goodyear makes an Eagle GT II that looks and rides fairly decent.
Good Luck with your car.
Steve

Dec 1, 2010 | 07:17 PM

zakim

Heel & Toe

Joined: Feb 2010

Posts: 18

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Quote:

Originally Posted by Easy Mike

I run P235 70R-15s on my '68 and my '80 and don't have any problems with them.

You indicated that you have 235 on your vet -- which brand and is it truck tire ? what do you think about Michelin touring 225 60 15 ?

Dec 1, 2010 | 09:43 PM

tnovot

Racer

Joined: Feb 2008

Posts: 497

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From: Streator Illinois

Quote:

Originally Posted by zakim

You indicated that you have 235 on your vet -- which brand and is it truck tire ? what do you think about Michelin touring 225 60 15 ?

If you want the same tire circumference as the original tires, you want either 225-70-15 (earlier C3's including 1975) or 255-60-15 (later C3's).
Since this thread started, there have been many posts the past few years about tire sizes. You can do a search to find as much tire info as you need and more.
Terry