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15 in rims. widest tires?

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Old Aug 1, 2007 | 04:59 PM
  #1  
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
15 in rims. widest tires?

What is the widest tire i can fit without tubbing out the back with the 15 in. rims?
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Old Aug 1, 2007 | 05:15 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 15 in rims. widest tires?

About 275. After that you need to "tweak" the fenderwell.
This is assuming a wide enough wheel. 275 on stock 15x7 wheels is not recommended.
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Old Aug 1, 2007 | 05:24 PM
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: 15 in rims. widest tires?

ya well i was thynkin 255 mb if im lucky 265 but mostly 255
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Old Aug 1, 2007 | 07:08 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 15 in rims. widest tires?

When I bought my 84 it had 265s on it, they looked pretty silly. I wouldn't go wider than the stock 235.
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Old Aug 1, 2007 | 10:35 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 15 in rims. widest tires?

Originally Posted by Apeiron
When I bought my 84 it had 265s on it, they looked pretty silly. I wouldn't go wider than the stock 235.
Stock 235? What year had stock 235s? I didn't even know 265s existed, who makes a 265?
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Old Aug 1, 2007 | 10:46 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 15 in rims. widest tires?

235s were an optional size in all years, AFAIK. The 265s I had were Goodyear Eagles. Dunlop still makes a 265, I don't know if anyone else does.
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Old Aug 2, 2007 | 02:02 AM
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From: Maui, Hawaii
Car: 1984 Trans Am
Engine: broken 385sbc
Transmission: G-Force rebuilt T-5
Axle/Gears: Currie 9" Ford 4.30:1
Re: 15 in rims. widest tires?

i think mw66nova had 295/50-15's on a stock rim.. BIG BULGE
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Old Aug 2, 2007 | 09:50 AM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 15 in rims. widest tires?

He used 275/60/R15's, haha, I saved the pictures on my computer at home.
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Old Aug 2, 2007 | 12:49 PM
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Re: 15 in rims. widest tires?

do you have pictures of that? may i see
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Old Aug 2, 2007 | 01:53 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 15 in rims. widest tires?

https://www.thirdgen.org/forums/susp...-15-stock.html

Links don't seem to be working right, right now. If clicking on it doesn't work, fix the URL in your browser.
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Old Aug 4, 2007 | 09:23 PM
  #11  
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Re: 15 in rims. widest tires?

Originally Posted by Sonix
https://www.thirdgen.org/forums/susp...-15-stock.html

Links don't seem to be working right, right now. If clicking on it doesn't work, fix the URL in your browser.
I have 265/50/15's and they seem to tuck in ok. I do not have very much room on either side, so choose your backspacing very carefully.
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