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Discussion Starter #1
Hi everyone...
I'm restoring a 1969 Mustang Mach 1 and would like it to have meaner look, with bigger wheels and tires... but still looking original...
I wanted 15x10" rear wheels and 15x8' front wheels, but don't know if they fit original body...
does anyone knows if this fits? and which tires could I get for them??
Regards
 

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They will fit fine but your key is to make sure you offset/backspace are correct. You have a lot more room than us guys with the 65/66 models but that offset can still get you.
 

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Discussion Starter #3
Hi...
Thank you!
I've checked backspace already and it's fine...
My concern now is about the size of the tires...
Would you know which is the maximum tire size I can put in (front and rear) with 15x8" and 15x10" rims?





They will fit fine but your key is to make sure you offset/backspace are correct. You have a lot more room than us guys with the 65/66 models but that offset can still get you.
[/QUOTE
 

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Hi...
Thank you!
I've checked backspace already and it's fine...
My concern now is about the size of the tires...
Would you know which is the maximum tire size I can put in (front and rear) with 15x8" and 15x10" rims?
Just want to make sure we are on the same page here. It sounds like you haven't yet ordered the wheels? To maximize usable size you need to make sure that the wheels you order have the correct backspace. This is where most people mess up (I did it once in my younger years, tires weren't too big but they rubbed on fenders because they didn't have enough backspace). If you have verified this number, you can wait for someone to chime in their size recommendations but to be honest, I would make the measurements myself.
Rear is fairly straight forward: measure from inside rub point, probably the side of the leaf spring, to the outside inside lip of the fender to get maximum width. You can go a little taller than stock BUT don't get carried away. Taller tires give you taller gears, good for gas mileage but cut down on your acceleration. Bigger tires and wheels also mean more rotational mass meaning they take more horsepower to get rolling.
You can make similar measurements but you have to take into account inside scrubbing when the wheels are turned sharply or hitting bumps.
 

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Discussion Starter #5
HI... great!!! thank you very much once again...

I still havent ordered the wheels... but checked backspace maximum with specialists from NPD Store...

As I want vintage tires, I'll measure the spaces properly as you've said...

Thanks!

Best Regards

Pedro
 
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