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American Racing Billet Wheelz - To do or not to do

2.2K views 8 replies 5 participants last post by  MangeMD  
#1 ·
My 1967 Camaro SS is m new pride and joy. I am trying to get new tires and wheelz for it. I found a wheel that I fell in love with - American Racing Billet wheel - VN327.

I took it to a chain establishment (Discount Tire) and I felt that the managers knowledge was outstanding. He knew what he was talking about and I felt very comfortable with his approach. It seemed that he crossed all of his t's and dotted all of his I's. I took it there today so that he could measure my car. He took off both wheels from the right side. He said that my current wheel is a 16 x 8 with a -6 offset.

He recommended the 18 x 8 for the rear and 18 x 7 for the front. I informed him that I did not want the wheel/tire to protrude outside the fender. I am all about the rake/stance. I don't care about anything else. Oh and I don't want it to rub at all . I don't plan on tubbing the rear end. My paint and body is done, I simply want some sick wheels.

The tires that he recommended were 255 40 18 - Rear
225 40 18 - Front

Here is my issue: He didn't measure anything within my wheel area. Not a tape measure - nothing. He was not worried about the new wheel hitting anything. He just said that based on what was on the car, what I wanted to upgrade to would not be an issue. He also relied on his company's software to tell him what was valid.

I've read about offsets till I'm blue in the face and I simply do not get it. I spent an hour with this guy today and I just got more and more confused as far as how he was calculating the wheels and tires. No more youtube videos on how to measure. I am somewhat mechanically inclined, however, I do not understand the whole measuring concept. Before I spend almost $3000 should I be a bit worried. I have not ordered them yet. Please advise
 
#2 ·
#4 ·
Are able to get the backspace specs for the wheels and post them? This is a critical measurement. For your set up, you should be somewhere around 4.25" up front and 4.5" in the rear. Keep in mind also, the bigger the wheel the shorter the sidewall (profile). An 18" 40 series tire will give you a fairly harsh ride; okay if you prefer performance over comfort.

Here is a pic showing the backspace. It is measured from the inside of the hub to the inside bead. More backspace pushes the wheel/tire further into the wheel well.

Image
 
#5 ·
Also do a wheel and tire package search for your vehicle and choose staggered option. It will give you rim and tire set ups that will fit
 
#9 ·
What are the offsets of the wheels he is recommending? (the rear, and the front). Once he gives you those, you can plug them into this chart and find the backspacing.


WHAT IS WHEEL OFFSET?