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19” US Mags Iroc Wheels

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Old Oct 26, 2019 | 12:03 PM
  #1  
Terence Zelman's Avatar
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From: Sherwood Park, Alberta, Canada
Car: 1987 Iroc Z
Engine: 5.7
Transmission: 4 speed auto
19” US Mags Iroc Wheels

Hey folks, new to the site but loving it so far. I am looking to purchase the US mags replica wheels in 19” but I am a little ignorant when it comes to fitment. What can you folks tell me about fitting a set of 19” wheels under my iroc with lowering my car Approx 2”? I like the idea of a 19” x 9” with a 255 series tire on the front and a 19” x 10 or 11” with a 285 series on the back. What will I need to do with regards to front and back spacing and offset?

The forum won’t let me attach the link but these are pretty badass rims.
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Old Oct 26, 2019 | 05:31 PM
  #2  
K_trip's Avatar
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Joined: Sep 2019
Posts: 30
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From: Santa Cruz - California
Car: 1985 IROC-Z
Engine: 5.0 Liter H.O. (carb)
Transmission: T5 5 speed
Axle/Gears: open 3.73
Re: 19” US Mags Iroc Wheels

Check this out...
https://www.thirdgen.org/forums/whee...oc-wheels.html
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Old Oct 26, 2019 | 05:58 PM
  #3  
Terence Zelman's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2019
Posts: 15
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From: Sherwood Park, Alberta, Canada
Car: 1987 Iroc Z
Engine: 5.7
Transmission: 4 speed auto
Re: 19” US Mags Iroc Wheels

Awesome info. I sent it over to the dealer. Hopefully he can make sense of it and translate the offset and backspacing over to a set of 19’s.
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Old Oct 26, 2019 | 07:31 PM
  #4  
K_trip's Avatar
Junior Member
 
Joined: Sep 2019
Posts: 30
Likes: 7
From: Santa Cruz - California
Car: 1985 IROC-Z
Engine: 5.0 Liter H.O. (carb)
Transmission: T5 5 speed
Axle/Gears: open 3.73
Re: 19” US Mags Iroc Wheels

Most often you can adjust the wheel location with spacers, and I'm sure the folks helping you know all about that.

I found this during my search - check out TWIN_TURBO posting on 01-14-2014 ...
https://www.thirdgen.org/forums/whee...l-fitment.html
Originally Posted by Twin_Turbo
I run 19x8.5 ET15 and 19x9.5ET20s they do not stick out, in fact the front could take even less offset and this is with a brake upgrade pushing the hub face outboard. Adjust for the rear axle you have, fronts should be spot on. ETs in the 40s require spacers.

I have a 295/30/19 in the rear but not a 4th gen axle, however with the correct wheel offset it's not a problem. I run 265s in the front and next time I would go 275 front and 315 rear...I think I can make that fit without a problem.
Good Luck - Let us know what you came up with, and post some pics!
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Old Oct 27, 2019 | 09:13 AM
  #5  
Terence Zelman's Avatar
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Junior Member
 
Joined: Oct 2019
Posts: 15
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From: Sherwood Park, Alberta, Canada
Car: 1987 Iroc Z
Engine: 5.7
Transmission: 4 speed auto
Re: 19” US Mags Iroc Wheels

Originally Posted by K_trip
Most often you can adjust the wheel location with spacers, and I'm sure the folks helping you know all about that.

I found this during my search - check out TWIN_TURBO posting on 01-14-2014 ...
https://www.thirdgen.org/forums/whee...l-fitment.html


Good Luck - Let us know what you came up with, and post some pics!
awesome. Thanks for the help. Love this forum.
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