what backspacing to run

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74valiant

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im gonna run either 16x7 or 16x8 wheels. i was wondering what would be a good backspace to use? the tires im using are 225/5016fr. and 255/50/16r. if that helps.



thanks jason
 
You should check out the "Post your wheel and tire combo's" thread here...http://www.forabodiesonly.com/mopar/showthread.php?t=14254

It would also help to know if you're running stock suspension and brakes, or any upgrades you've made as it will make a big difference. Typically, 4.5" of backspace is good standard choice for 15" rims, larger rims can sometimes get away with more but that's usually only true for 17" and up.
 
stock disc, stock rebeilt suspension. might want to lower it a lil after everything is done, but at the moment, stock height will do.
 
4.5" of backspace will probably work for you then. I'd still check the wheels and tire combo thread just to see if anyone else is running the same size. Measuring is really the only way to be sure, but those sizes aren't the biggest I've seen run, and obviously as you try to maximize the size of the tire measurements come into play a lot more.
 
I'm running A.R. Torq Thrust II's

Front 15X7 (3.75" backspace) P215-60-R15
Rear 16x8 (4" backspace) P255-55-ZR16

Duster340 mod.jpg
 
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