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I owned a 69 Z/28 back in the late 80's, early 90's. It had 15x7 ralley wheels all around, with (I believe) 4" back spacing. jt

Jesse, what size tires did you have on those 15x7 on your Z

Seeing how this is a wheel's thread, I'll ask my question here. I have a 69 SS with ARW 15x7" on all 4 225-60 BS of 4.25 on front, and 245-60 BS 3.75 on back. I want to purchase Rally wheels and was wondering if a 235-60-15 will fit on all 4 without any fitment issues.? Need BS measurements also. 

Thank You Doc,
I would like to run 235-60-15 on all 4's  How does one figure out what size wheel and tire combo to buy without it rubbing?

Hi everyone, new to the group. I have purchased a 95% restored 69 SS It has American Racing wheels on it now. 225-60 15"x7" with a Back space of 4.25 on the front. 245-60 15"x7" with a Back space of 3.75 on the rear.  The front tire inside rubs the tie rod end grease boot just a little. The rear tire has no rubbing at all. I want to purchase Rally wheels and tires. I would like to know what the Back spacing measurements were on an OEM factory wheel so I can figure out what size to buy.