Tire size 67 Chevelle SS convertible - Chevelle Tech
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post #1 of 7 (permalink) Old Aug 19th, 19, 7:42 AM Thread Starter
John
 
Join Date: Aug 2019
Location: Ma.
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Smile Tire size 67 Chevelle SS convertible

Hello everyone,

New member here and glad to join.
My question is I have new Coker redline tires for my Chevelle. Size are 225/70/R15. I know the originals were 14" but I wanted a little bigger tire. My problem is the front tires rub the front fender when I turn the wheel. Can I change to a 215/70/R15 tire? Rear is fine no rubbing. Any suggestions would help.

Thanks
John
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post #2 of 7 (permalink) Old Aug 19th, 19, 8:38 AM
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Re: Tire size 67 Chevelle SS convertible

That is a much taller tire than the original size,you need to see where the tire is touching the fender before getting a different size tire.Is your car lowered at all ? are they the OE springs and sagging ?
Check to see where the tires are hitting the fenders. Turn the front tires all the way to the left and then all the way right.Mark the fender area's where its touching when it is at full lock on both sides.Sometimes if it's just barely touching the inner fender you can do a little persuasion with a hammer but if it's hitting the outer fender and you have finished paint then you may need to change the tire size.Check with Coker for the 215 tires circumference Vs. your 225's you have because a 215 may still be big enough to touch the fender.
Welcome to Team Chevelle.

John
71 El Camino SS
406 SBC M21 3.31 12 bolt
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post #3 of 7 (permalink) Old Aug 19th, 19, 10:11 PM
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Re: Tire size 67 Chevelle SS convertible

How are your body bushings??

Leo Paugh
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progress has little to do with speed, but lots to do with direction

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post #4 of 7 (permalink) Old Aug 20th, 19, 9:35 AM
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Greg.
 
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Re: Tire size 67 Chevelle SS convertible

John Welcome to team Chevelle and the 67 Club of Chevelles

Things that affect the Front Tires Rubbing on the Front Fenders ;
1. car lowered too much from Stock Ride Height
2. BackSpacing of the Wheel
3. to Wide of a Tire

The Stock Ride Height of my 67 was 27" from Ground to underside of Chrome Trim on Front Fender Lip



I changed old Stock Front springs for Moroso Trick Springs and it went to 24"
and every time I turned the Front Wheels/Tires they would rub on the Inside of the Fender Lip
Wheel/ Tire Combo ;
Wheels - Cragar 3915734 15” x 7” BS= 3.5” GorillaLNuts#71974
Tires - Uniroyal Tiger Paws P205/75R /15”

Put a 1" Rubber Spacer under the Bottom of the Moroso Trick Spring and it went to 25.5"

I have this W/T combo on the Front of my 67 now
Wheels - JEGs Sport Stars#66062 Alum 15”x 7” BS= 4” Billet Specialties ET Lug Nuts #999980
Tires - Cooper Star Fire SF 340 P205/70R/15”
with no rubbing on turns





So for me changing to a Shorter Tire 75 to 70
and more BackSpace 3.5" to 4" which moved the W/T Combo more to the Inside
and having the Ground to Fender Lip at 25.5" ( 26" would be better)
was the solution to no rubbing

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/06/23
60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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post #5 of 7 (permalink) Old Aug 21st, 19, 9:55 AM Thread Starter
John
 
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Re: Tire size 67 Chevelle SS convertible

Hi Leo P,

My front end is all new. I stayed with original A arms for my car. My problem is only driver side tire rubbing at bottom of fender. What I forgot to mention was I removed the upper arm shims (don't remember why) which may have caused the driver side spindle to move forward. Passenger side is fine. I hope to put back shims tonight to see if clearance has changed. Front end alignment will be next.
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post #6 of 7 (permalink) Old Aug 21st, 19, 10:03 AM Thread Starter
John
 
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Re: Tire size 67 Chevelle SS convertible

Hi Kirk,
thank you for your response!
I will check height again but I think I'm at 27" But If the A arms shims don't that care of this problem then I'll need to re-visit tire size. Only driver side is my issue. Passenger side fine.

thanks
John
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post #7 of 7 (permalink) Old Aug 21st, 19, 1:02 PM
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Greg.
 
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Re: Tire size 67 Chevelle SS convertible

Well that sounds like the Problem right there, to me

Also check what Width of Wheel and the BackSpace it has

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/06/23
60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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