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Topic: Tire Size

in Forum: C3 General Discussion

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Re: Tire Size (18/28)
12/6/14 1:18pm

JMB
Former Member
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Cohasset, MA - USA

Vette(s):
1968 coupe bought in 1999, 2nd owner, 427 custom built, 4 speed (M20), 3:36 posi rear end, Recaro seats, Intro wheels, Nitto tires, Flowmasters, etc. Painted nite race metallic blue.

Joined: 1/5/2004
Posts: 36

73shark said:

JMB said: I had 255/60 R-15 in my '68 a while back. In the rear they were perfect. In the front I had problems on sharp turns. Therefore, I would recommend either 235 or 245 for the front. I currently run 18 inch rims with 245/40 in front and 275/40 in the rear and they work great. Good luck with your decision.

Did you have to relocate the parking brake cable mounts on the trailing arms in order to clear the 275s?

No, I did not have to change anything.

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Re: Tire Size (19/28)
12/6/14 3:04pm

73shark
Limited Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 866

I forgot that you didn't have stock wheels. Your wheels must have had a little bit more negative offset so that they could clear the parking brake cable bracket on the trailing arm.

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1973 L-82 4 spd

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Re: Tire Size (20/28)
12/14/14 1:30am

alohajohn
Former Member
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Vette(s):
1972 T Top, Mille Miglia Red, auto, ac, power windows, power steering, tilt/tele, power brakes, black leather..

Joined: 3/10/2013
Posts: 24

I'm running 235/60x15 Goodrich TA's on my '72 on standard rims. I like the lower wider profile and have had no clearance problems other than being careful I don't bottom out..

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Re: Tire Size (21/28)
12/15/14 7:57am

vettejack

Lifetime Member
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Titusville, FL - USA

Vette(s):
1977 Coupe (White), 2006 Convertible (Victory Red). NCM Life Member #2221.

Joined: 12/19/2007
Posts: 154

I run 255/60's on my '82 and NEVER had issues with the yellowing of letters (currently running the GY Eagle GTII). Now, I have seen cars that run either the BFG's or GY's with raised white and found some to be "browning" or a darker shade of "yellowing" and discovered that the tires/lettering are simply dirty. I have never had any raised whites' yellow on me...and I've had both brands on my '82. I use regular car soap when washing the car and when I get to the tires to clean up the letters I use a bit of Comet cleanser (powder) on a stiff brisk brush...and this washing of the lettering will render those letters bright white for months. The only time the tire lettering 'darkens' is when I use the car a bit too long and the letters start seeing road grime.

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Re: Tire Size (22/28)
12/15/14 11:42am

Koosh79Vette
Former Member
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Elgin, SC - USA

Vette(s):
1979 L-48 Chevy Corvette

Joined: 11/14/2014
Posts: 1

I have a 79 corvette with 255 60 15 and I haven't had any trouble with rubbing. When I first purchased the car it had 255 80 15, it didn't rub with the added height, but I changed to the 60-series, my speed-o was showing 10 mph slower than actual speed

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Re: Tire Size (23/28)
12/15/14 10:56pm

I've had good luck w/ Bleche White or SOS pads cleaning white letters. And white walls back in the day for that matter.

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1973 L-82 4 spd

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Re: Tire Size (24/28)
12/16/14 1:28pm

F4Gary

Gold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 1409

vettejack said: I run 255/60's on my '82 and NEVER had issues with the yellowing of letters (currently running the GY Eagle GTII). Now, I have seen cars that run either the BFG's or GY's with raised white and found some to be "browning" or a darker shade of "yellowing" and discovered that the tires/lettering are simply dirty. I have never had any raised whites' yellow on me...and I've had both brands on my '82. I use regular car soap when washing the car and when I get to the tires to clean up the letters I use a bit of Comet cleanser (powder) on a stiff brisk brush...and this washing of the lettering will render those letters bright white for months. The only time the tire lettering 'darkens' is when I use the car a bit too long and the letters start seeing road grime.

How old are your Goodyear's?

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Re: Tire Size (25/28)
12/19/14 12:52pm

vettejack

Lifetime Member
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Titusville, FL - USA

Vette(s):
1977 Coupe (White), 2006 Convertible (Victory Red). NCM Life Member #2221.

Joined: 12/19/2007
Posts: 154

My GY tires date back to '09...less than 5K miles on them. No rot or loss of plyability.

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Re: Tire Size (26/28)
2/12/15 4:54pm

73 MRVETTE
Former Member
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Joined: 6/19/2013
Posts: 10

255-60x15 here as well.

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Re: Tire Size (27/28)
2/12/15 8:51pm

daveo76
Former Member
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 857

I'm running the Cooper 245's on my '76, no problems at all and they look proportionally correct, to me at least.

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1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

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Re: Tire Size (28/28)
2/13/15 5:15pm

danascar
Standard Member
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Germansville, PA - USA

Vette(s):
1974 Coupe 358ci 4 speed Black w/Medium Saddle interior w/79 custom leather seats. . 1999 C5 Convertible, 6 speed, Atomic orange, Oak interior.

Joined: 1/28/2010
Posts: 858

Many brands of tire shine discolor white letters too unless you wipe off while wet.

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DanT

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