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Big tires?

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Old 07-28-2018, 07:13 PM
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Big tires?

Anyone running M/T Sportsmen SR 31x18r15?
Have an opportunity for a pair with 15x15 rims with 3.5" back spacing...
Old 07-28-2018, 10:44 PM
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Big tires?

Is your car backhalved? That's the only way that wheel and tire would ever have a chance of fitting
Old 07-28-2018, 11:05 PM
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Car: 89 GTA ASC Conv., Prev: 89 GTA 6.3L
Engine: 5.7L L98 TPI
Transmission: 700r4 Automatic
Axle/Gears: 3.27:1 w/ JG1 Options:B2L, N10, U1A
Re: Big tires?

Takes a lot of energy to rotate tire that tall. Just sayin
Old 08-05-2018, 03:06 PM
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Re: Big tires?

Car is not tubbed, nor will it be. I unlike all you purists love the look of tires outside the fenderwell. Power should not be an issue, my other thread addresses that quite well. just wondering if anyone has had luck with 15x15 rims.
Old 08-05-2018, 03:48 PM
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Re: Big tires?

A lot outside the fender well, like 5 or 6 inches.
Old 08-05-2018, 03:56 PM
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Big tires?

Originally Posted by PaulyC
A lot outside the fender well, like 5 or 6 inches.
More like 8" plus tire bulge. It's a fitment catastrophe
Old 08-06-2018, 03:56 PM
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Re: Big tires?

I'd be more concerned with the 31" tall tire. Sawzall or a donk style lift in the rear only LOL.
Old 08-06-2018, 08:59 PM
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Big tires?

Just replace the rear springs with bricks, problem solved
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