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Old 03-22-2010, 02:05 PM   #88
Sublvr72
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Join Date: May 2004
Location: Simi Valley, CA
Posts: 1,387
Re: Boss 338 Wheels **GROUP BUY**

Quote:
Originally Posted by 72gmcshorty View Post
Excuse my ignorance...why would someone order different backspacing between the front and back? Can someone give me a quick and simple explanation of what backspacing is? Is it to do with how close the lip of wheel gets to the fender? Would either of these wheels fit with a stock 72 2wd rear end?

People like to go staggered to get the widest possible tire on the back of their RWD car/truck to get increased traction and looks.


Here's a simple image that goes over wheel fitment



Q: How do I measure backspace?
A: The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up. Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub-mounting pad of the wheel. This measurement is backspace. The following photo shows three wheels with 2", 3", & 4" backspace.





and here's a good link with plenty of wheel measurement info

http://www.customtacos.com/tech/index.php?article=40
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