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Does anyone run a 17x7 with 3 1/2 backspace on the front of their 55 56 57?

I want to run 17x7 with 3 1/2bs use 225 45 17 tire with Wilwood brakes, just wondering if this would work well.

Need some advise please :p3:
 

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I had to use a 225 70 17 with a 17 x 7 with a 4 5/8 backspace to clear my fender lip. I used a roller with 3 1/2 and it was very close to my fender. Too close to be driven and turned sharply.
 

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4.5" bs minimum recommended.

I had to use a 225 70 17 with a 17 x 7 with a 4 5/8 backspace to clear my fender lip. I used a roller with 3 1/2 and it was very close to my fender. Too close to be driven and turned sharply.
Agree.

3.5" bs is inadequate, and will place the tire sidewall critically close to the lip of the wheel arch, at the 12 o'clock position, in sharp turns.

You didn't say whether the front has been dropped, but if it has you would be better off in the 4 5/8" to 4 3/4" bs. Also, 90% of drop spindle kits move the wheel mounting surface outboard ½" or more, so 3.5" bs is just not a good choice.

Leave yourself some room for different tire size choices by increasing the backspace.

JMO
 

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If this help, I just ordered some new wheels and tires for my 55, went with 235/45/17 in the front on 7" wheels and a 4" BS. The tires fit and I have 2" dropped coil springs but they didn't look right, too small for my taste. So I ended up ordering 225/50/17 for the front the get a bigger diameter tire with a little more sidewall. For the rears I am going with a 255/50/17 on a 8" wheel with 4.5" BS.
 

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4" backspacing is not enough on some combinations - 4.5" is preferred.

The problem with that is that 4.5" backspacing is not common at all with an "off the shelf" 17 x 7 wheel - 4" is the limit on many. Often 4.5" bs is special order or billet wheel territory.

One more thing, the wheel diameter doesn't really matter here, only the width and backspacing.
 
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