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Tire size

Started by 68cobra427, April 21, 2026, 04:44:08 PM

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68cobra427

So what would you recommend for tires for front 17x7 wheels and 17x8 rear with stock suspension so the tires use up most all the wheel opening without hitting?



TA Coupe

To start with, you need to say what car and what year.

     Roy
If it starts it's streetable.
Overkill is just enough.

68cobra427

67 mustang convertible.

Bob Gaines

Quote from: 68cobra427 on April 22, 2026, 11:15:44 AM67 mustang convertible.
You would most likely get more response and insight from participants on the Vintage Mustang Forum given that they are focused more on modifications to regular Mustang and the restomod culture.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

shelbydoug

I can't say exactly because it depends on the wheel and the width of the rear housing.

I also do not know if the dimensions vary from the convertible to the fastback?

On my '68 GT350 fastback, a 235-60-15 will fit with no issue in the front on a Shelby 15" ten spoke wheel.

On the rear a 275-60-15 will fit but may need you to roll the fender lip? That would be with a stock Mustang rear and a Shelby 15" 10 spoke.


On the rear, you can gain 2" total clearance (1" each side) if you use a Lincoln /Versalles rear and then you can fit a 295-50-15. The Lincoln is a 9" pumpkin, 2" narrower then the Mustnag pumpkin, flange to flange but the mounting points of the springs are the same.


How the wheel offsets change things and the variations in tire dimensions vary with wheel od size, I simply don't know and likely you won't know either until you screw around with various combinations.
68 GT350 Lives Matter!

68cobra427

Thanks, car has a small bearing 9inch stock rearend. 350 posi

1175

I'd leave what's on there or go back to stock with correct 67 steel styled wheels.

Jon

68cobra427